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inquiryLargazole CAS NO.1009815-87-5 Application:Largazole CAS NO.1009815-87-5
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Largazole CAS NO.1009815-87-5Appearance:off-white fine crystalline powder Storage:Dry and ventilated Package:Standard or as customer's require Application:intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount
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Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 20℃; | 94% |
With triethylamine In dichloromethane at 0 - 20℃; | 94% |
Stage #1: Largazole thiol With chlorotriisopropylsilane; triethylamine; trifluoroacetic acid In dichloromethane Stage #2: n-octanoic acid chloride With triethylamine In dichloromethane at 20℃; for 2h; | 94% |
Conditions | Yield |
---|---|
Stage #1: C58H64N4O8S3 With diethylamine In dichloromethane at 20 - 25℃; for 3h; Inert atmosphere; Stage #2: With 1-hydroxy-7-azabenzotriazole; N-ethyl-N,N-diisopropylamine; HATU In acetonitrile at 20 - 25℃; for 12h; Inert atmosphere; | A 29% B 43% |
Multi-step reaction with 2 steps 1.1: diethylamine / dichloromethane / 3 h / 20 - 25 °C 2.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 20 - 25 °C 2.2: 12 h / 20 - 25 °C View Scheme |
Conditions | Yield |
---|---|
With potassium carbonate; potassium iodide In acetonitrile at 25℃; for 16h; Inert atmosphere; | 42% |
Conditions | Yield |
---|---|
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In toluene at 110℃; for 4h; | 41% |
Stage #1: S-but-3-enyl octanethionate; C19H24N4O4S2; tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In toluene at 110℃; for 4h; Stage #2: With dimethyl sulfoxide In toluene at 20℃; | 41% |
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In toluene at 60℃; for 24h; Inert atmosphere; | 34% |
With Hoveyda-Grubbs catalyst second generation In 1,2-dichloro-ethane at 90℃; Inert atmosphere; Sealed tube; | 27% |
Conditions | Yield |
---|---|
With 1,3-bis-(2,4,6-trimethylphenyl)-2-(imidazolidinylidene)dichloro(5-nitro-2-isopropoxyphenylmethylene)ruthenium In 1,2-dichloro-ethane at 90℃; for 12h; Inert atmosphere; optical yield given as %de; stereoselective reaction; |
largazole
Conditions | Yield |
---|---|
With HOAt; 2-(1H-benzotriazole-1-yL)-1,1,3,3-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 23℃; for 4h; | 6.3 mg |
Conditions | Yield |
---|---|
With 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU In dichloromethane at 20℃; for 48h; | A 20 mg B 2 mg |
Conditions | Yield |
---|---|
Stage #1: C43H54N4O6S3 With N-ethyl-N,N-diisopropylamine In dichloromethane at 20 - 25℃; for 0.166667h; Stage #2: With 1-hydroxy-7-aza-benzotriazole; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In acetonitrile at 20 - 25℃; for 12h; | A 1.2 mg B 1.8 mg |
methyl 2-(tert-butoxycarbonylaminomethyl)thiazole-4-carboxylate
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1.1: lithium hydroxide / tetrahydrofuran; water / 0 - 20 °C 1.2: pH 1 - 2 2.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran; dichloromethane / 0.17 h 3.1: triethylamine; trifluoroacetic anhydride / dichloromethane / 0 °C 4.1: sodium hydrogencarbonate / methanol / 2 h / 70 °C / pH 6 / aq. phosphate buffer 5.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 5.2: 0 - 20 °C 6.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 7.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 8.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 9.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme |
(R)-2-(2-((tert-butoxycarbonylamino)methyl)thiazol-4-yl)-4-methyl-4,5-dihydrothiazole-4-carboxylic acid
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 1.2: 0 - 20 °C 2.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 3.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 4.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 5.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 8 steps 1.1: hydrogenchloride / 0.08 h 2.1: dmap / dichloromethane / 0.08 h 2.2: 1 h 3.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 3.2: 0 - 20 °C 4.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 5.1: diethylamine / dichloromethane / 3 h / 20 °C 6.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 7.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 8.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
(S,E)-2-(trimethylsilyl)ethyl 3-(((S)-2-amino-3-methylbutanoyl)oxy)-7-(tritylthio)hept-4-enoate
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 1.2: 0 - 20 °C 2.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 3.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 4.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 5.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme |
(S,E)-2-(trimethylsilyl)ethyl 3-(((S)-2-((R)-2'-(((tert-butoxycarbonyl)amino)methyl)-4-methyl-4,5-dihydro[2,4'-bithiazole]-4-carboxamido)-3-methylbutanoyl)oxy)-7-(tritylthio)hept-4-enoate
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 2: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 3: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 4: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme |
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 2: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 3: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme |
(5R,8S,11S)-8-isopropyl-5-methyl-11-((E)-4-(tritylthio)but-1-en-1-yl)-10-oxa-3,17-dithia-7,14,19,20-tetraazatricyclo[14.2.1.12,5]icosa-1(18),2(20),16(19)-triene-6,9,13-trione
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 2: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 2: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: dichloromethane / 2 h / 20 °C 2.1: trifluoroacetic acid; chlorotriisopropylsilane; triethylamine / dichloromethane 2.2: 2 h / 20 °C View Scheme |
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: diethylamine / acetonitrile / 2 h 2.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 2.2: 0 - 20 °C 3.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 4.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 5.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 6.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme |
2-((tert-butoxycarbonylamino)methyl)thiazole-4-carboxylic acid
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran; dichloromethane / 0.17 h 2.1: triethylamine; trifluoroacetic anhydride / dichloromethane / 0 °C 3.1: sodium hydrogencarbonate / methanol / 2 h / 70 °C / pH 6 / aq. phosphate buffer 4.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 4.2: 0 - 20 °C 5.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 6.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 7.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 8.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 11 steps 1.1: chloroformic acid ethyl ester; triethylamine / tetrahydrofuran / 0.5 h / 0 °C 1.2: 2 h / 20 °C 2.1: triethylamine; trifluoroacetic anhydride / dichloromethane / 1 h / 0 - 20 °C 3.1: sodium hydrogencarbonate / methanol / 1 h / 70 °C / pH 5.95 / Inert atmosphere; phosphate buffer 4.1: hydrogenchloride / 0.08 h 5.1: dmap / dichloromethane / 0.08 h 5.2: 1 h 6.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 6.2: 0 - 20 °C 7.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 8.1: diethylamine / dichloromethane / 3 h / 20 °C 9.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 10.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 11.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
2-(tert-butoxycarbonylaminomethyl)-1,3-thiazole-4-carboxamide
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: triethylamine; trifluoroacetic anhydride / dichloromethane / 0 °C 2.1: sodium hydrogencarbonate / methanol / 2 h / 70 °C / pH 6 / aq. phosphate buffer 3.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 3.2: 0 - 20 °C 4.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 5.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 6.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 7.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 10 steps 1.1: triethylamine; trifluoroacetic anhydride / dichloromethane / 1 h / 0 - 20 °C 2.1: sodium hydrogencarbonate / methanol / 1 h / 70 °C / pH 5.95 / Inert atmosphere; phosphate buffer 3.1: hydrogenchloride / 0.08 h 4.1: dmap / dichloromethane / 0.08 h 4.2: 1 h 5.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 5.2: 0 - 20 °C 6.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 7.1: diethylamine / dichloromethane / 3 h / 20 °C 8.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 9.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 10.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
2-[N-(tert-butoxycarbonyl)aminomethyl]thiazole-4-carbonitrile
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: sodium hydrogencarbonate / methanol / 2 h / 70 °C / pH 6 / aq. phosphate buffer 2.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.17 h / 0 °C 2.2: 0 - 20 °C 3.1: trifluoroacetic acid / dichloromethane / 0 - 20 °C 4.1: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane; acetonitrile 5.1: triethylsilane; trifluoroacetic anhydride / 2 h / 0 - 20 °C 6.1: triethylamine / dichloromethane / 3 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 9 steps 1.1: sodium hydrogencarbonate / methanol / 1 h / 70 °C / pH 5.95 / Inert atmosphere; phosphate buffer 2.1: hydrogenchloride / 0.08 h 3.1: dmap / dichloromethane / 0.08 h 3.2: 1 h 4.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 4.2: 0 - 20 °C 5.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 6.1: diethylamine / dichloromethane / 3 h / 20 °C 7.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 8.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 9.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 8 steps 1.1: triethylamine / 72 h / 50 °C 2.1: dichloromethane / 1 h / 25 °C 3.1: dmap / dichloromethane / 1 h / 25 °C 4.1: triethylamine; 2,4,6-trichlorobenzoyl chloride / tetrahydrofuran / 1 h / 0 °C 4.2: 10 h / 25 °C 5.1: water; lithium hydroxide / tetrahydrofuran / 3 h / 0 °C 5.2: pH 3 6.1: dichloromethane / 2 h / 25 °C 7.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 24 h / 25 °C 8.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / toluene / 4 h / 110 °C 8.2: 20 °C View Scheme |
C55H54N4O7S3
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: diethylamine / dichloromethane / 3 h / 20 °C 2: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 3: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 4: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
C40H44N4O5S3
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 2: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 3: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
(R)-methyl 2-(2-(((3S,4E)-3-hydroxy-7-(tritylthio)hept-4-enamido)methyl)thiazol-4-yl)-4-methyl-4,5-dihydrothiazole-4-carboxylate
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 1.2: 0 - 20 °C 2.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 3.1: diethylamine / dichloromethane / 3 h / 20 °C 4.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 5.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 6.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
(4R)-methyl 2-(2-((8S)-1-(9H-fluoren-9-yl)-5-isopropyl-3,6,10-trioxo-8-((E)-4-(tritylthio)-but-1-enyl)-2,7-dioxa-4,11-diazadodecan-12-yl)thiazol-4-yl)-4-methyl-4,5-dihydrothiazole-4-carboxylate
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 2: diethylamine / dichloromethane / 3 h / 20 °C 3: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 4: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 5: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: dmap / dichloromethane / 0.08 h 1.2: 1 h 2.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 2.2: 0 - 20 °C 3.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 4.1: diethylamine / dichloromethane / 3 h / 20 °C 5.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 6.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 7.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
Fmoc-Val-OH
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 1.2: 0 - 20 °C 2.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 3.1: diethylamine / dichloromethane / 3 h / 20 °C 4.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 5.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 6.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 5 steps 1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 0 - 20 °C 2.1: diethylamine / acetonitrile / 2 h 2.2: 2 h 3.1: trifluoroacetic acid / dichloromethane / 20 °C 3.2: 16 h 4.1: dichloromethane / 2 h / 20 °C 5.1: trifluoroacetic acid; chlorotriisopropylsilane; triethylamine / dichloromethane 5.2: 2 h / 20 °C View Scheme |
(2E)-5-[(triphenylmethyl)thio]-2-pentenal
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1.1: titanium tetrachloride; N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h / -78 °C 1.2: 1 h / -78 °C 2.1: dmap / dichloromethane / 0.08 h 2.2: 1 h 3.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 3.2: 0 - 20 °C 4.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 5.1: diethylamine / dichloromethane / 3 h / 20 °C 6.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 7.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 8.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 6 steps 1.1: N-ethyl-N,N-diisopropylamine; titanium tetrachloride / dichloromethane / -78 °C 2.1: 1H-imidazole / dichloromethane / 20 °C 2.2: 18 h 3.1: diethylamine / acetonitrile / 2 h 3.2: 2 h 4.1: trifluoroacetic acid / dichloromethane / 20 °C 4.2: 16 h 5.1: dichloromethane / 2 h / 20 °C 6.1: trifluoroacetic acid; chlorotriisopropylsilane; triethylamine / dichloromethane 6.2: 2 h / 20 °C View Scheme | |
Multi-step reaction with 6 steps 1.1: N-ethyl-N,N-diisopropylamine; titanium tetrachloride / dichloromethane 2.1: 1H-imidazole / dichloromethane / 20 °C 2.2: 18 h 3.1: diethylamine / acetonitrile / 2 h 3.2: 2 h 4.1: trifluoroacetic acid / dichloromethane / 20 °C 4.2: 16 h 5.1: dichloromethane / 2 h / 20 °C 6.1: trifluoroacetic acid; chlorotriisopropylsilane; triethylamine / dichloromethane 6.2: 2 h / 20 °C View Scheme |
(3S,4E)-3-hydroxy-1-((4R)-4-isopropyl-2-thioxothiazolidin-3-yl)-7-tritylsulfanyl-hept-4-en-1-one
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: dmap / dichloromethane / 0.08 h 1.2: 1 h 2.1: dmap; 2,4,6-trichlorobenzoyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 °C 2.2: 0 - 20 °C 3.1: lithium hydroxide / tetrahydrofuran; water / 1.25 h / 0 °C 4.1: diethylamine / dichloromethane / 3 h / 20 °C 5.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 30 h / 20 °C 6.1: chlorotriisopropylsilane; trifluoroacetic acid / dichloromethane / 3 h / 0 - 20 °C 7.1: dmap; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 0 - 20 °C View Scheme |
C2HF3O2*C10H13N3O2S2
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: dmap / dichloromethane / 1 h / 25 °C 2.1: triethylamine; 2,4,6-trichlorobenzoyl chloride / tetrahydrofuran / 1 h / 0 °C 2.2: 10 h / 25 °C 3.1: water; lithium hydroxide / tetrahydrofuran / 3 h / 0 °C 3.2: pH 3 4.1: dichloromethane / 2 h / 25 °C 5.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 24 h / 25 °C 6.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / toluene / 4 h / 110 °C 6.2: 20 °C View Scheme |
C15H19N3O4S2
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: triethylamine; 2,4,6-trichlorobenzoyl chloride / tetrahydrofuran / 1 h / 0 °C 1.2: 10 h / 25 °C 2.1: water; lithium hydroxide / tetrahydrofuran / 3 h / 0 °C 2.2: pH 3 3.1: dichloromethane / 2 h / 25 °C 4.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 24 h / 25 °C 5.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / toluene / 4 h / 110 °C 5.2: 20 °C View Scheme |
C25H36N4O7S2
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: water; lithium hydroxide / tetrahydrofuran / 3 h / 0 °C 1.2: pH 3 2.1: dichloromethane / 2 h / 25 °C 3.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 24 h / 25 °C 4.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / toluene / 4 h / 110 °C 4.2: 20 °C View Scheme |
C24H34N4O7S2
largazole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: dichloromethane / 2 h / 25 °C 2.1: 1-hydroxy-7-aza-benzotriazole; N-ethyl-N,N-diisopropylamine; HATU / dichloromethane / 24 h / 25 °C 3.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / toluene / 4 h / 110 °C 3.2: 20 °C View Scheme |
largazole
Largazole thiol
Conditions | Yield |
---|---|
With ammonia In water; acetonitrile at 20℃; for 18h; | 70% |
With ammonia In water; acetonitrile at 25℃; for 18h; | 70% |
largazole
A
D-Val-OH
B
L-valine
C
(S)-Malic acid
D
D(S)-2-methylcysteic acid
E
2-methylcysteic acid
F
glycine
Conditions | Yield |
---|---|
Stage #1: largazole With ozone In dichloromethane at 25℃; for 0.5h; Stage #2: With formic acid; dihydrogen peroxide at 70℃; for 0.333333h; Stage #3: With hydrogenchloride; water at 110℃; for 24h; |
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