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2-(4-((tert-butyldimethylsilyl)oxy)-3-methoxyphenyl)acetic acid
resiniferatoxin
Conditions | Yield |
---|---|
Stage #1: 2-(4-((tert-butyldimethylsilyl)oxy)-3-methoxyphenyl)acetic acid; C31H39ClO5Si With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 5.66667h; Stage #2: With tetrabutyl ammonium fluoride In tetrahydrofuran at 0℃; for 0.583333h; | 92% |
Conditions | Yield |
---|---|
With di-tert-butyl-diazodicarboxylate; triphenylphosphine In tetrahydrofuran at 20℃; for 1h; Mitsunobu reaction; | 67% |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 32 steps 1.1: Dowex 50W / tetrahydrofuran; water / 12 h / 90 °C 2.1: pyridine / dichloromethane / 1 h / 0 - 20 °C 3.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 4.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 5.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 5.2: 0.42 h 6.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 7.1: triethylamine / dichloromethane / 1.25 h / 0 °C 8.1: dmap / toluene / 1.5 h / 20 °C / Darkness 9.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 10.1: potassium carbonate / methanol / 7.5 h / 0 °C 11.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 12.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 13.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 14.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 15.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 16.1: triethylamine / dichloromethane / 1.5 h / 0 °C 17.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 18.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 18.2: (+)-CSA / 0.33 h / 50 °C 19.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 20.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 20.2: 0.5 h / 20 °C / Inert atmosphere 21.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 22.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 23.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 23.2: 1.5 h 24.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 25.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 26.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 27.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 28.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 28.2: 0.33 h / -20 °C / Inert atmosphere 29.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 30.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 31.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 31.2: 0.42 h / 150 °C 31.3: 0.5 h / 0 - 20 °C 32.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 32.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 33 steps 1.1: Dowex 50W / tetrahydrofuran; water / 12 h / 90 °C 2.1: pyridine / dichloromethane / 1 h / 0 - 20 °C 3.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 4.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 5.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 5.2: 0.42 h 6.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 7.1: triethylamine / dichloromethane / 1.25 h / 0 °C 8.1: dmap / toluene / 1.5 h / 20 °C / Darkness 9.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 10.1: potassium carbonate / methanol / 7.5 h / 0 °C 11.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 12.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 13.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 14.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 15.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 16.1: triethylamine / dichloromethane / 1.5 h / 0 °C 17.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 18.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 18.2: (+)-CSA / 0.33 h / 50 °C 19.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 20.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 20.2: 0.5 h / 20 °C / Inert atmosphere 21.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 22.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 23.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 23.2: 1.5 h 24.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 24.2: 1.5 h 25.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 26.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 27.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 28.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 29.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 29.2: 0.33 h / -20 °C / Inert atmosphere 30.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 31.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 32.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 32.2: 0.42 h / 150 °C 32.3: 0.5 h / 0 - 20 °C 33.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 33.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 31 steps 1.1: pyridine / dichloromethane / 1 h / 0 - 20 °C 2.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 3.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 4.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 4.2: 0.42 h 5.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 6.1: triethylamine / dichloromethane / 1.25 h / 0 °C 7.1: dmap / toluene / 1.5 h / 20 °C / Darkness 8.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 9.1: potassium carbonate / methanol / 7.5 h / 0 °C 10.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 11.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 12.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 13.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 14.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 15.1: triethylamine / dichloromethane / 1.5 h / 0 °C 16.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 17.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 17.2: (+)-CSA / 0.33 h / 50 °C 18.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 19.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 19.2: 0.5 h / 20 °C / Inert atmosphere 20.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 21.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 22.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 22.2: 1.5 h 23.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 24.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 25.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 26.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 27.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 27.2: 0.33 h / -20 °C / Inert atmosphere 28.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 29.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 30.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 30.2: 0.42 h / 150 °C 30.3: 0.5 h / 0 - 20 °C 31.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 31.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 32 steps 1.1: pyridine / dichloromethane / 1 h / 0 - 20 °C 2.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 3.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 4.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 4.2: 0.42 h 5.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 6.1: triethylamine / dichloromethane / 1.25 h / 0 °C 7.1: dmap / toluene / 1.5 h / 20 °C / Darkness 8.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 9.1: potassium carbonate / methanol / 7.5 h / 0 °C 10.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 11.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 12.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 13.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 14.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 15.1: triethylamine / dichloromethane / 1.5 h / 0 °C 16.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 17.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 17.2: (+)-CSA / 0.33 h / 50 °C 18.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 19.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 19.2: 0.5 h / 20 °C / Inert atmosphere 20.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 21.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 22.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 22.2: 1.5 h 23.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 23.2: 1.5 h 24.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 25.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 26.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 27.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 28.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 28.2: 0.33 h / -20 °C / Inert atmosphere 29.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 30.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 31.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 31.2: 0.42 h / 150 °C 31.3: 0.5 h / 0 - 20 °C 32.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 32.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 30 steps 1.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 2.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 3.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 3.2: 0.42 h 4.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 5.1: triethylamine / dichloromethane / 1.25 h / 0 °C 6.1: dmap / toluene / 1.5 h / 20 °C / Darkness 7.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 8.1: potassium carbonate / methanol / 7.5 h / 0 °C 9.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 10.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 11.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 12.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 13.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 14.1: triethylamine / dichloromethane / 1.5 h / 0 °C 15.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 16.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 16.2: (+)-CSA / 0.33 h / 50 °C 17.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 18.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 18.2: 0.5 h / 20 °C / Inert atmosphere 19.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 20.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 21.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 21.2: 1.5 h 22.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 23.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 24.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 25.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 26.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 26.2: 0.33 h / -20 °C / Inert atmosphere 27.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 28.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 29.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 29.2: 0.42 h / 150 °C 29.3: 0.5 h / 0 - 20 °C 30.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 30.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 31 steps 1.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 2.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 3.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 3.2: 0.42 h 4.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 5.1: triethylamine / dichloromethane / 1.25 h / 0 °C 6.1: dmap / toluene / 1.5 h / 20 °C / Darkness 7.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 8.1: potassium carbonate / methanol / 7.5 h / 0 °C 9.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 10.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 11.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 12.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 13.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 14.1: triethylamine / dichloromethane / 1.5 h / 0 °C 15.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 16.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 16.2: (+)-CSA / 0.33 h / 50 °C 17.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 18.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 18.2: 0.5 h / 20 °C / Inert atmosphere 19.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 20.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 21.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 21.2: 1.5 h 22.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 22.2: 1.5 h 23.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 24.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 25.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 26.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 27.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 27.2: 0.33 h / -20 °C / Inert atmosphere 28.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 29.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 30.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 30.2: 0.42 h / 150 °C 30.3: 0.5 h / 0 - 20 °C 31.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 31.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 29 steps 1.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 2.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 2.2: 0.42 h 3.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 4.1: triethylamine / dichloromethane / 1.25 h / 0 °C 5.1: dmap / toluene / 1.5 h / 20 °C / Darkness 6.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 7.1: potassium carbonate / methanol / 7.5 h / 0 °C 8.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 9.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 10.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 11.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 12.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 13.1: triethylamine / dichloromethane / 1.5 h / 0 °C 14.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 15.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 15.2: (+)-CSA / 0.33 h / 50 °C 16.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 17.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 17.2: 0.5 h / 20 °C / Inert atmosphere 18.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 19.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 20.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 20.2: 1.5 h 21.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 22.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 23.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 24.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 25.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 25.2: 0.33 h / -20 °C / Inert atmosphere 26.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 27.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 28.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 28.2: 0.42 h / 150 °C 28.3: 0.5 h / 0 - 20 °C 29.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 29.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 30 steps 1.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 2.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 2.2: 0.42 h 3.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 4.1: triethylamine / dichloromethane / 1.25 h / 0 °C 5.1: dmap / toluene / 1.5 h / 20 °C / Darkness 6.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 7.1: potassium carbonate / methanol / 7.5 h / 0 °C 8.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 9.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 10.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 11.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 12.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 13.1: triethylamine / dichloromethane / 1.5 h / 0 °C 14.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 15.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 15.2: (+)-CSA / 0.33 h / 50 °C 16.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 17.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 17.2: 0.5 h / 20 °C / Inert atmosphere 18.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 19.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 20.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 20.2: 1.5 h 21.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 21.2: 1.5 h 22.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 23.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 24.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 25.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 26.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 26.2: 0.33 h / -20 °C / Inert atmosphere 27.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 28.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 29.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 29.2: 0.42 h / 150 °C 29.3: 0.5 h / 0 - 20 °C 30.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 30.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 28 steps 1.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 1.2: 0.42 h 2.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 3.1: triethylamine / dichloromethane / 1.25 h / 0 °C 4.1: dmap / toluene / 1.5 h / 20 °C / Darkness 5.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 6.1: potassium carbonate / methanol / 7.5 h / 0 °C 7.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 8.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 9.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 10.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 11.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 12.1: triethylamine / dichloromethane / 1.5 h / 0 °C 13.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 14.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 14.2: (+)-CSA / 0.33 h / 50 °C 15.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 16.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 16.2: 0.5 h / 20 °C / Inert atmosphere 17.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 18.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 19.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 19.2: 1.5 h 20.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 21.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 22.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 23.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 24.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 24.2: 0.33 h / -20 °C / Inert atmosphere 25.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 26.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 27.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 27.2: 0.42 h / 150 °C 27.3: 0.5 h / 0 - 20 °C 28.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 28.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 29 steps 1.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 1.2: 0.42 h 2.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 3.1: triethylamine / dichloromethane / 1.25 h / 0 °C 4.1: dmap / toluene / 1.5 h / 20 °C / Darkness 5.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 6.1: potassium carbonate / methanol / 7.5 h / 0 °C 7.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 8.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 9.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 10.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 11.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 12.1: triethylamine / dichloromethane / 1.5 h / 0 °C 13.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 14.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 14.2: (+)-CSA / 0.33 h / 50 °C 15.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 16.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 16.2: 0.5 h / 20 °C / Inert atmosphere 17.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 18.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 19.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 19.2: 1.5 h 20.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 20.2: 1.5 h 21.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 22.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 23.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 24.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 25.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 25.2: 0.33 h / -20 °C / Inert atmosphere 26.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 27.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 28.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 28.2: 0.42 h / 150 °C 28.3: 0.5 h / 0 - 20 °C 29.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 29.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 2.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 3.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 4.2: 0.33 h / -20 °C / Inert atmosphere 5.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 6.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 7.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 7.2: 0.42 h / 150 °C 7.3: 0.5 h / 0 - 20 °C 8.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 8.2: 0.58 h / 0 °C View Scheme |
Homovanillic acid
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: 1H-imidazole / N,N-dimethyl-formamide / 3 h / 0 - 20 °C 2.1: acetic acid / tetrahydrofuran; water / 1 h / 0 °C 3.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 3.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 11 steps 1.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 2.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 2.2: 1.5 h 3.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 4.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 5.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 6.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 7.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 7.2: 0.33 h / -20 °C / Inert atmosphere 8.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 9.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 10.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 10.2: 0.42 h / 150 °C 10.3: 0.5 h / 0 - 20 °C 11.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 11.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 12 steps 1.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 2.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 2.2: 1.5 h 3.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 3.2: 1.5 h 4.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 5.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 6.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 7.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 8.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 8.2: 0.33 h / -20 °C / Inert atmosphere 9.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 10.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 11.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 11.2: 0.42 h / 150 °C 11.3: 0.5 h / 0 - 20 °C 12.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 12.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 27 steps 1.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 2.1: triethylamine / dichloromethane / 1.25 h / 0 °C 3.1: dmap / toluene / 1.5 h / 20 °C / Darkness 4.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 5.1: potassium carbonate / methanol / 7.5 h / 0 °C 6.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 7.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 8.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 9.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 10.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 11.1: triethylamine / dichloromethane / 1.5 h / 0 °C 12.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 13.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 13.2: (+)-CSA / 0.33 h / 50 °C 14.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 15.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 15.2: 0.5 h / 20 °C / Inert atmosphere 16.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 17.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 18.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 18.2: 1.5 h 19.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 20.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 21.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 22.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 23.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 23.2: 0.33 h / -20 °C / Inert atmosphere 24.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 25.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 26.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 26.2: 0.42 h / 150 °C 26.3: 0.5 h / 0 - 20 °C 27.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 27.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 28 steps 1.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 2.1: triethylamine / dichloromethane / 1.25 h / 0 °C 3.1: dmap / toluene / 1.5 h / 20 °C / Darkness 4.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 5.1: potassium carbonate / methanol / 7.5 h / 0 °C 6.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 7.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 8.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 9.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 10.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 11.1: triethylamine / dichloromethane / 1.5 h / 0 °C 12.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 13.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 13.2: (+)-CSA / 0.33 h / 50 °C 14.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 15.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 15.2: 0.5 h / 20 °C / Inert atmosphere 16.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 17.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 18.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 18.2: 1.5 h 19.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 19.2: 1.5 h 20.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 21.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 22.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 23.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 24.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 24.2: 0.33 h / -20 °C / Inert atmosphere 25.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 26.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 27.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 27.2: 0.42 h / 150 °C 27.3: 0.5 h / 0 - 20 °C 28.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 28.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 26 steps 1.1: triethylamine / dichloromethane / 1.25 h / 0 °C 2.1: dmap / toluene / 1.5 h / 20 °C / Darkness 3.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 4.1: potassium carbonate / methanol / 7.5 h / 0 °C 5.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 6.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 7.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 8.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 9.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 10.1: triethylamine / dichloromethane / 1.5 h / 0 °C 11.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 12.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 12.2: (+)-CSA / 0.33 h / 50 °C 13.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 14.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 14.2: 0.5 h / 20 °C / Inert atmosphere 15.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 16.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 17.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 17.2: 1.5 h 18.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 19.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 20.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 21.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 22.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 22.2: 0.33 h / -20 °C / Inert atmosphere 23.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 24.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 25.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 25.2: 0.42 h / 150 °C 25.3: 0.5 h / 0 - 20 °C 26.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 26.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 27 steps 1.1: triethylamine / dichloromethane / 1.25 h / 0 °C 2.1: dmap / toluene / 1.5 h / 20 °C / Darkness 3.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 4.1: potassium carbonate / methanol / 7.5 h / 0 °C 5.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 6.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 7.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 8.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 9.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 10.1: triethylamine / dichloromethane / 1.5 h / 0 °C 11.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 12.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 12.2: (+)-CSA / 0.33 h / 50 °C 13.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 14.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 14.2: 0.5 h / 20 °C / Inert atmosphere 15.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 16.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 17.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 17.2: 1.5 h 18.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 18.2: 1.5 h 19.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 20.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 21.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 22.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 23.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 23.2: 0.33 h / -20 °C / Inert atmosphere 24.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 25.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 26.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 26.2: 0.42 h / 150 °C 26.3: 0.5 h / 0 - 20 °C 27.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 27.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 25 steps 1.1: dmap / toluene / 1.5 h / 20 °C / Darkness 2.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 3.1: potassium carbonate / methanol / 7.5 h / 0 °C 4.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 5.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 6.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 7.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 8.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 9.1: triethylamine / dichloromethane / 1.5 h / 0 °C 10.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 11.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 11.2: (+)-CSA / 0.33 h / 50 °C 12.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 13.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 13.2: 0.5 h / 20 °C / Inert atmosphere 14.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 15.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 16.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 16.2: 1.5 h 17.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 18.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 19.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 20.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 21.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 21.2: 0.33 h / -20 °C / Inert atmosphere 22.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 23.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 24.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 24.2: 0.42 h / 150 °C 24.3: 0.5 h / 0 - 20 °C 25.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 25.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 26 steps 1.1: dmap / toluene / 1.5 h / 20 °C / Darkness 2.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 3.1: potassium carbonate / methanol / 7.5 h / 0 °C 4.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 5.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 6.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 7.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 8.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 9.1: triethylamine / dichloromethane / 1.5 h / 0 °C 10.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 11.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 11.2: (+)-CSA / 0.33 h / 50 °C 12.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 13.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 13.2: 0.5 h / 20 °C / Inert atmosphere 14.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 15.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 16.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 16.2: 1.5 h 17.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 17.2: 1.5 h 18.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 19.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 20.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 21.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 22.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 22.2: 0.33 h / -20 °C / Inert atmosphere 23.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 24.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 25.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 25.2: 0.42 h / 150 °C 25.3: 0.5 h / 0 - 20 °C 26.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 26.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 24 steps 1.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 2.1: potassium carbonate / methanol / 7.5 h / 0 °C 3.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 4.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 5.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 6.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 7.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 8.1: triethylamine / dichloromethane / 1.5 h / 0 °C 9.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 10.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 10.2: (+)-CSA / 0.33 h / 50 °C 11.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 12.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 12.2: 0.5 h / 20 °C / Inert atmosphere 13.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 14.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 15.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 15.2: 1.5 h 16.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 17.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 18.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 19.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 20.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 20.2: 0.33 h / -20 °C / Inert atmosphere 21.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 22.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 23.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 23.2: 0.42 h / 150 °C 23.3: 0.5 h / 0 - 20 °C 24.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 24.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 25 steps 1.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 2.1: potassium carbonate / methanol / 7.5 h / 0 °C 3.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 4.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 5.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 6.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 7.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 8.1: triethylamine / dichloromethane / 1.5 h / 0 °C 9.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 10.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 10.2: (+)-CSA / 0.33 h / 50 °C 11.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 12.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 12.2: 0.5 h / 20 °C / Inert atmosphere 13.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 14.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 15.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 15.2: 1.5 h 16.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 16.2: 1.5 h 17.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 18.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 19.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 20.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 21.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 21.2: 0.33 h / -20 °C / Inert atmosphere 22.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 23.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 24.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 24.2: 0.42 h / 150 °C 24.3: 0.5 h / 0 - 20 °C 25.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 25.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 23 steps 1.1: potassium carbonate / methanol / 7.5 h / 0 °C 2.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 3.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 4.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 5.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 6.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 7.1: triethylamine / dichloromethane / 1.5 h / 0 °C 8.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 9.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 9.2: (+)-CSA / 0.33 h / 50 °C 10.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 11.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 11.2: 0.5 h / 20 °C / Inert atmosphere 12.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 13.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 14.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 14.2: 1.5 h 15.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 16.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 17.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 18.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 19.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 19.2: 0.33 h / -20 °C / Inert atmosphere 20.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 21.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 22.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 22.2: 0.42 h / 150 °C 22.3: 0.5 h / 0 - 20 °C 23.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 23.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 24 steps 1.1: potassium carbonate / methanol / 7.5 h / 0 °C 2.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 3.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 4.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 5.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 6.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 7.1: triethylamine / dichloromethane / 1.5 h / 0 °C 8.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 9.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 9.2: (+)-CSA / 0.33 h / 50 °C 10.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 11.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 11.2: 0.5 h / 20 °C / Inert atmosphere 12.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 13.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 14.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 14.2: 1.5 h 15.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 15.2: 1.5 h 16.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 17.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 18.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 19.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 20.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 20.2: 0.33 h / -20 °C / Inert atmosphere 21.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 22.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 23.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 23.2: 0.42 h / 150 °C 23.3: 0.5 h / 0 - 20 °C 24.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 24.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 22 steps 1.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 2.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 3.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 4.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 5.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 6.1: triethylamine / dichloromethane / 1.5 h / 0 °C 7.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 8.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 8.2: (+)-CSA / 0.33 h / 50 °C 9.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 10.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 10.2: 0.5 h / 20 °C / Inert atmosphere 11.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 12.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 13.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 13.2: 1.5 h 14.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 15.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 16.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 17.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 18.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 18.2: 0.33 h / -20 °C / Inert atmosphere 19.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 20.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 21.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 21.2: 0.42 h / 150 °C 21.3: 0.5 h / 0 - 20 °C 22.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 22.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 23 steps 1.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 2.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 3.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 4.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 5.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 6.1: triethylamine / dichloromethane / 1.5 h / 0 °C 7.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 8.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 8.2: (+)-CSA / 0.33 h / 50 °C 9.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 10.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 10.2: 0.5 h / 20 °C / Inert atmosphere 11.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 12.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 13.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 13.2: 1.5 h 14.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 14.2: 1.5 h 15.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 16.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 17.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 18.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 19.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 19.2: 0.33 h / -20 °C / Inert atmosphere 20.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 21.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 22.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 22.2: 0.42 h / 150 °C 22.3: 0.5 h / 0 - 20 °C 23.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 23.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 21 steps 1.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 2.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 3.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 4.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 5.1: triethylamine / dichloromethane / 1.5 h / 0 °C 6.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 7.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 7.2: (+)-CSA / 0.33 h / 50 °C 8.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 9.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 9.2: 0.5 h / 20 °C / Inert atmosphere 10.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 11.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 12.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 12.2: 1.5 h 13.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 14.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 15.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 16.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 17.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 17.2: 0.33 h / -20 °C / Inert atmosphere 18.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 19.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 20.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 20.2: 0.42 h / 150 °C 20.3: 0.5 h / 0 - 20 °C 21.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 21.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 22 steps 1.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 2.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 3.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 4.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 5.1: triethylamine / dichloromethane / 1.5 h / 0 °C 6.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 7.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 7.2: (+)-CSA / 0.33 h / 50 °C 8.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 9.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 9.2: 0.5 h / 20 °C / Inert atmosphere 10.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 11.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 12.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 12.2: 1.5 h 13.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 13.2: 1.5 h 14.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 15.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 16.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 17.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 18.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 18.2: 0.33 h / -20 °C / Inert atmosphere 19.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 20.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 21.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 21.2: 0.42 h / 150 °C 21.3: 0.5 h / 0 - 20 °C 22.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 22.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 20 steps 1.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 2.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 3.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 4.1: triethylamine / dichloromethane / 1.5 h / 0 °C 5.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 6.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 6.2: (+)-CSA / 0.33 h / 50 °C 7.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 8.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 8.2: 0.5 h / 20 °C / Inert atmosphere 9.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 10.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 11.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 11.2: 1.5 h 12.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 13.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 14.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 15.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 16.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 16.2: 0.33 h / -20 °C / Inert atmosphere 17.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 18.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 19.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 19.2: 0.42 h / 150 °C 19.3: 0.5 h / 0 - 20 °C 20.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 20.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 21 steps 1.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 2.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 3.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 4.1: triethylamine / dichloromethane / 1.5 h / 0 °C 5.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 6.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 6.2: (+)-CSA / 0.33 h / 50 °C 7.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 8.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 8.2: 0.5 h / 20 °C / Inert atmosphere 9.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 10.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 11.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 11.2: 1.5 h 12.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 12.2: 1.5 h 13.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 14.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 15.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 16.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 17.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 17.2: 0.33 h / -20 °C / Inert atmosphere 18.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 19.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 20.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 20.2: 0.42 h / 150 °C 20.3: 0.5 h / 0 - 20 °C 21.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 21.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 19 steps 1.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 2.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 3.1: triethylamine / dichloromethane / 1.5 h / 0 °C 4.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 5.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 5.2: (+)-CSA / 0.33 h / 50 °C 6.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 7.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 7.2: 0.5 h / 20 °C / Inert atmosphere 8.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 9.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 10.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 10.2: 1.5 h 11.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 12.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 13.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 14.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 15.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 15.2: 0.33 h / -20 °C / Inert atmosphere 16.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 17.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 18.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 18.2: 0.42 h / 150 °C 18.3: 0.5 h / 0 - 20 °C 19.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 19.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 20 steps 1.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 2.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 3.1: triethylamine / dichloromethane / 1.5 h / 0 °C 4.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 5.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 5.2: (+)-CSA / 0.33 h / 50 °C 6.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 7.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 7.2: 0.5 h / 20 °C / Inert atmosphere 8.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 9.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 10.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 10.2: 1.5 h 11.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 11.2: 1.5 h 12.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 13.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 14.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 15.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 16.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 16.2: 0.33 h / -20 °C / Inert atmosphere 17.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 18.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 19.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 19.2: 0.42 h / 150 °C 19.3: 0.5 h / 0 - 20 °C 20.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 20.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 18 steps 1.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 2.1: triethylamine / dichloromethane / 1.5 h / 0 °C 3.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 4.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 4.2: (+)-CSA / 0.33 h / 50 °C 5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 6.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 6.2: 0.5 h / 20 °C / Inert atmosphere 7.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 8.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 9.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 9.2: 1.5 h 10.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 11.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 12.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 13.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 14.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 14.2: 0.33 h / -20 °C / Inert atmosphere 15.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 16.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 17.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 17.2: 0.42 h / 150 °C 17.3: 0.5 h / 0 - 20 °C 18.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 18.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 19 steps 1.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 2.1: triethylamine / dichloromethane / 1.5 h / 0 °C 3.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 4.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 4.2: (+)-CSA / 0.33 h / 50 °C 5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 6.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 6.2: 0.5 h / 20 °C / Inert atmosphere 7.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 8.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 9.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 9.2: 1.5 h 10.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 10.2: 1.5 h 11.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 12.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 13.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 14.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 15.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 15.2: 0.33 h / -20 °C / Inert atmosphere 16.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 17.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 18.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 18.2: 0.42 h / 150 °C 18.3: 0.5 h / 0 - 20 °C 19.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 19.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 17 steps 1.1: triethylamine / dichloromethane / 1.5 h / 0 °C 2.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 3.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 3.2: (+)-CSA / 0.33 h / 50 °C 4.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 5.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 5.2: 0.5 h / 20 °C / Inert atmosphere 6.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 7.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 8.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 8.2: 1.5 h 9.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 10.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 11.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 12.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 13.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 13.2: 0.33 h / -20 °C / Inert atmosphere 14.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 15.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 16.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 16.2: 0.42 h / 150 °C 16.3: 0.5 h / 0 - 20 °C 17.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 17.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 18 steps 1.1: triethylamine / dichloromethane / 1.5 h / 0 °C 2.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 3.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 3.2: (+)-CSA / 0.33 h / 50 °C 4.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 5.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 5.2: 0.5 h / 20 °C / Inert atmosphere 6.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 7.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 8.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 8.2: 1.5 h 9.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 9.2: 1.5 h 10.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 11.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 12.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 13.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 14.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 14.2: 0.33 h / -20 °C / Inert atmosphere 15.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 16.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 17.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 17.2: 0.42 h / 150 °C 17.3: 0.5 h / 0 - 20 °C 18.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 18.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 16 steps 1.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 2.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 2.2: (+)-CSA / 0.33 h / 50 °C 3.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 4.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 4.2: 0.5 h / 20 °C / Inert atmosphere 5.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 6.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 7.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 7.2: 1.5 h 8.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 9.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 10.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 11.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 12.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 12.2: 0.33 h / -20 °C / Inert atmosphere 13.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 14.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 15.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 15.2: 0.42 h / 150 °C 15.3: 0.5 h / 0 - 20 °C 16.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 16.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 17 steps 1.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 2.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 2.2: (+)-CSA / 0.33 h / 50 °C 3.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 4.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 4.2: 0.5 h / 20 °C / Inert atmosphere 5.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 6.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 7.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 7.2: 1.5 h 8.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 8.2: 1.5 h 9.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 10.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 11.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 12.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 13.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 13.2: 0.33 h / -20 °C / Inert atmosphere 14.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 15.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 16.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 16.2: 0.42 h / 150 °C 16.3: 0.5 h / 0 - 20 °C 17.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 17.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 15 steps 1.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 1.2: (+)-CSA / 0.33 h / 50 °C 2.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 3.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 3.2: 0.5 h / 20 °C / Inert atmosphere 4.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 5.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 6.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 6.2: 1.5 h 7.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 8.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 9.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 10.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 11.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 11.2: 0.33 h / -20 °C / Inert atmosphere 12.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 13.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 14.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 14.2: 0.42 h / 150 °C 14.3: 0.5 h / 0 - 20 °C 15.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 15.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 16 steps 1.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 1.2: (+)-CSA / 0.33 h / 50 °C 2.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 3.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 3.2: 0.5 h / 20 °C / Inert atmosphere 4.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 5.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 6.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 6.2: 1.5 h 7.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 7.2: 1.5 h 8.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 9.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 10.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 11.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 12.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 12.2: 0.33 h / -20 °C / Inert atmosphere 13.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 14.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 15.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 15.2: 0.42 h / 150 °C 15.3: 0.5 h / 0 - 20 °C 16.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 16.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 14 steps 1.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 2.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 2.2: 0.5 h / 20 °C / Inert atmosphere 3.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 4.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 5.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 5.2: 1.5 h 6.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 7.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 8.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 9.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 10.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 10.2: 0.33 h / -20 °C / Inert atmosphere 11.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 12.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 13.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 13.2: 0.42 h / 150 °C 13.3: 0.5 h / 0 - 20 °C 14.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 14.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 15 steps 1.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 2.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 2.2: 0.5 h / 20 °C / Inert atmosphere 3.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 4.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 5.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 5.2: 1.5 h 6.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 6.2: 1.5 h 7.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 8.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 9.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 10.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 11.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 11.2: 0.33 h / -20 °C / Inert atmosphere 12.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 13.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 14.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 14.2: 0.42 h / 150 °C 14.3: 0.5 h / 0 - 20 °C 15.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 15.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 13 steps 1.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 1.2: 0.5 h / 20 °C / Inert atmosphere 2.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 3.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 4.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 4.2: 1.5 h 5.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 6.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 7.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 8.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 9.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 9.2: 0.33 h / -20 °C / Inert atmosphere 10.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 11.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 12.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 12.2: 0.42 h / 150 °C 12.3: 0.5 h / 0 - 20 °C 13.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 13.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 14 steps 1.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 1.2: 0.5 h / 20 °C / Inert atmosphere 2.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 3.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 4.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 4.2: 1.5 h 5.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 5.2: 1.5 h 6.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 7.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 8.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 9.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 10.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 10.2: 0.33 h / -20 °C / Inert atmosphere 11.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 12.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 13.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 13.2: 0.42 h / 150 °C 13.3: 0.5 h / 0 - 20 °C 14.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 14.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 12 steps 1.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 2.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 3.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 3.2: 1.5 h 4.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 5.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 6.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 7.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 8.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 8.2: 0.33 h / -20 °C / Inert atmosphere 9.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 10.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 11.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 11.2: 0.42 h / 150 °C 11.3: 0.5 h / 0 - 20 °C 12.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 12.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 13 steps 1.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 2.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 3.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 3.2: 1.5 h 4.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 4.2: 1.5 h 5.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 6.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 7.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 8.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 9.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 9.2: 0.33 h / -20 °C / Inert atmosphere 10.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 11.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 12.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 12.2: 0.42 h / 150 °C 12.3: 0.5 h / 0 - 20 °C 13.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 13.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 1.2: 1.5 h 2.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 3.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 4.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 5.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 6.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 6.2: 0.33 h / -20 °C / Inert atmosphere 7.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 8.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 9.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 9.2: 0.42 h / 150 °C 9.3: 0.5 h / 0 - 20 °C 10.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 10.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 11 steps 1.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 1.2: 1.5 h 2.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 2.2: 1.5 h 3.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 4.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 5.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 6.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 7.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 7.2: 0.33 h / -20 °C / Inert atmosphere 8.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 9.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 10.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 10.2: 0.42 h / 150 °C 10.3: 0.5 h / 0 - 20 °C 11.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 11.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 37 steps 1.1: p-benzoquinone; Hoveyda-Grubbs catalyst second generation / 1,2-dichloro-ethane / 9 h / 80 °C / Inert atmosphere 2.1: hydrogen; palladium 10% on activated carbon / hexane; ethyl acetate / 0.5 h / 0 °C / 760.05 Torr 3.1: tert.-butyl lithium / tetrahydrofuran; pentane / 0.17 h / -78 - 0 °C / Inert atmosphere 3.2: 0.17 h / -78 - 0 °C / Inert atmosphere 4.1: 4-methylmorpholine N-oxide; tetra-n-propylammonium perruthenate. / dichloromethane / 0.75 h / 20 °C / Molecular sieve; Inert atmosphere 5.1: tert.-butyl lithium / tetrahydrofuran; pentane / 15 h / -78 °C / Inert atmosphere 5.2: 0.17 h / -78 °C / Inert atmosphere 5.3: 2 h / -78 - -45 °C / Inert atmosphere 6.1: Dowex 50W / tetrahydrofuran; water / 12 h / 90 °C 7.1: pyridine / dichloromethane / 1 h / 0 - 20 °C 8.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 9.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 10.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 10.2: 0.42 h 11.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 12.1: triethylamine / dichloromethane / 1.25 h / 0 °C 13.1: dmap / toluene / 1.5 h / 20 °C / Darkness 14.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 15.1: potassium carbonate / methanol / 7.5 h / 0 °C 16.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 17.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 18.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 19.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 20.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 21.1: triethylamine / dichloromethane / 1.5 h / 0 °C 22.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 23.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 23.2: (+)-CSA / 0.33 h / 50 °C 24.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 25.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 25.2: 0.5 h / 20 °C / Inert atmosphere 26.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 27.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 28.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 28.2: 1.5 h 29.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 30.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 31.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 32.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 33.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 33.2: 0.33 h / -20 °C / Inert atmosphere 34.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 35.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 36.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 36.2: 0.42 h / 150 °C 36.3: 0.5 h / 0 - 20 °C 37.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 37.2: 0.58 h / 0 °C View Scheme | |
Multi-step reaction with 38 steps 1.1: p-benzoquinone; Hoveyda-Grubbs catalyst second generation / 1,2-dichloro-ethane / 9 h / 80 °C / Inert atmosphere 2.1: hydrogen; palladium 10% on activated carbon / hexane; ethyl acetate / 0.5 h / 0 °C / 760.05 Torr 3.1: tert.-butyl lithium / tetrahydrofuran; pentane / 0.17 h / -78 - 0 °C / Inert atmosphere 3.2: 0.17 h / -78 - 0 °C / Inert atmosphere 4.1: 4-methylmorpholine N-oxide; tetra-n-propylammonium perruthenate. / dichloromethane / 0.75 h / 20 °C / Molecular sieve; Inert atmosphere 5.1: tert.-butyl lithium / tetrahydrofuran; pentane / 15 h / -78 °C / Inert atmosphere 5.2: 0.17 h / -78 °C / Inert atmosphere 5.3: 2 h / -78 - -45 °C / Inert atmosphere 6.1: Dowex 50W / tetrahydrofuran; water / 12 h / 90 °C 7.1: pyridine / dichloromethane / 1 h / 0 - 20 °C 8.1: (+)-CSA / benzene / 2 h / 20 °C / Inert atmosphere 9.1: triethylamine / dichloromethane / 0.75 h / 20 °C / Inert atmosphere 10.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 °C 10.2: 0.42 h 11.1: lead(IV) tetraacetate; potassium carbonate / toluene / 1.17 h / 0 - 20 °C 12.1: triethylamine / dichloromethane / 1.25 h / 0 °C 13.1: dmap / toluene / 1.5 h / 20 °C / Darkness 14.1: sodium hydrogencarbonate / toluene / 0.5 h / 20 °C / Irradiation 15.1: potassium carbonate / methanol / 7.5 h / 0 °C 16.1: acetic anhydride; dimethyl sulfoxide / 2 h / 35 °C 17.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol / 0.17 h / -78 °C 18.1: 2,6-dimethylpyridine / water; dichloromethane / 0.5 h / 0 °C 19.1: 1,1'-azobis(1-cyanocyclohexanenitrile) / chlorobenzene / 0.5 h / Reflux; Inert atmosphere 20.1: sodium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 21.1: triethylamine / dichloromethane / 1.5 h / 0 °C 22.1: sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid / hexane; dichloromethane / 0.5 h / 0 °C 23.1: diisobutylaluminium hydride / hexane; dichloromethane / 1 h / -93 °C / Inert atmosphere 23.2: (+)-CSA / 0.33 h / 50 °C 24.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / 20 °C 25.1: sodium hydride / tetrahydrofuran; mineral oil / 0.17 h / 0 °C / Inert atmosphere 25.2: 0.5 h / 20 °C / Inert atmosphere 26.1: 5,5-dimethyl-1,3-cyclohexadiene / 1.5 h / 110 °C / Inert atmosphere 27.1: tri-n-butyl-tin hydride; 1,1'-azobis(1-cyanocyclohexanenitrile) / 5,5-dimethyl-1,3-cyclohexadiene / 0.17 h / 180 °C / Inert atmosphere; Microwave irradiation 28.1: hydrogenchloride / water; methanol / 3.5 h / 30 °C 28.2: 1.5 h 29.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 29.2: 1.5 h 30.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 31.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 32.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 33.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 34.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 34.2: 0.33 h / -20 °C / Inert atmosphere 35.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 36.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 37.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 37.2: 0.42 h / 150 °C 37.3: 0.5 h / 0 - 20 °C 38.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 38.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 2.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 3.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 4.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 5.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 5.2: 0.33 h / -20 °C / Inert atmosphere 6.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 7.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 8.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 8.2: 0.42 h / 150 °C 8.3: 0.5 h / 0 - 20 °C 9.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 9.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1.1: hydrogenchloride / methanol; water / 3.5 h / 30 °C 1.2: 1.5 h 2.1: dmap; 2-azatricyclo[3.3.1.13,7]dec-2-yloxidanyl; [2,2]bipyridinyl; copper(l) chloride / acetonitrile / 0.5 h / 0 °C 3.1: dmap / tetrahydrofuran; toluene / 2 h / 0 °C 4.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 20 °C 5.1: L-Selectride / tetrahydrofuran / 0.42 h / -78 °C / Inert atmosphere 6.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 - 0 °C / Inert atmosphere 6.2: 0.33 h / -20 °C / Inert atmosphere 7.1: dmap; 1,4-diaza-bicyclo[2.2.2]octane / acetonitrile / 76 h / 110 °C 8.1: N-Bromosuccinimide / tetrahydrofuran / 0.83 h / 0 °C 9.1: selenium(IV) oxide / tert-butyl alcohol / 80 °C 9.2: 0.42 h / 150 °C 9.3: 0.5 h / 0 - 20 °C 10.1: caesium carbonate / N,N-dimethyl-formamide / 5.67 h / 20 °C 10.2: 0.58 h / 0 °C View Scheme |
resiniferatoxin
Conditions | Yield |
---|---|
With sodium tetrahydroborate In ethanol for 2h; | 60% |
resiniferatoxin
Conditions | Yield |
---|---|
With sodium methylate In methanol |
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