(3S,4R)-3-[(R)-1-hydroxyethyl)-4-[3-(4-nitrobenzyl)oxycarbonyl-2-oxo-3-diazopropyl]azetidin-2-one
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
With dirhodium tetraacetate In toluene at 80℃; for 2.5h; Cyclization; | |
rhodium (II) octanoate dimer In dichloromethane for 4 - 5h; Heating / reflux; | |
With nitrogen; rhodium(II) acetate In benzene |
(3S,4R)-3-[(R)-1-hydroxyethyl)-4-[3-(4-nitrobenzyl)oxycarbonyl-2-oxo-3-diazopropyl]azetidin-2-one
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
In toluene |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
With nitrogen; rhodium(II) acetate In benzene |
(3S,4R)-benzyl N-(p-toluenesulfonyl)-3-((R)-1-(tert-butyldimethylsilyloxy)ethyl)-azetidin-2-one-4-carboxylate
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: samarium diiodide; samarium; isopropyl alcohol 2: 10% palladium on activated charcoal; hydrogen / tetrahydrofuran 3: lead(IV) tetraacetate / N,N-dimethyl-formamide 4: zinc(II) chloride / dichloromethane 5: hydrogenchloride; methanol 6: dirhodium tetraacetate / toluene View Scheme |
(3S,4R)-benzyl 3-((R)-1-(tert-butyldimethylsilyloxy)ethyl)-azetidin-2-one-4-carboxylate
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 10% palladium on activated charcoal; hydrogen / tetrahydrofuran 2: lead(IV) tetraacetate / N,N-dimethyl-formamide 3: zinc(II) chloride / dichloromethane 4: hydrogenchloride; methanol 5: dirhodium tetraacetate / toluene View Scheme |
(3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: zinc(II) chloride / dichloromethane 2: hydrogenchloride; methanol 3: dirhodium tetraacetate / toluene View Scheme |
4-nitrobenzyl 3-((tert-butyldimethylsilyl)oxy)-2-diazobut-3-enoate
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: zinc(II) chloride / dichloromethane 2: hydrogenchloride; methanol 3: dirhodium tetraacetate / toluene View Scheme |
(3S,4R)-3-<(R)-1'-(dimethyl-t-butylsilyloxy)ethyl>-4-oxoazetidin-2-carboxylic acid
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: lead(IV) tetraacetate / N,N-dimethyl-formamide 2: zinc(II) chloride / dichloromethane 3: hydrogenchloride; methanol 4: dirhodium tetraacetate / toluene View Scheme |
(3S,4R)-3-[(1R)-(tert-butyldimethyl-silyloxy)ethyl]-4-[3-(4-nitrobenzyloxy)carbonyl-2-oxo-3-diazopropyl]azetidin-2-one
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: hydrogenchloride; methanol 2: dirhodium tetraacetate / toluene View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
ethyl 2-sulfanylacetate
Conditions | Yield |
---|---|
Stage #1: (5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester With N-ethyl-N,N-diisopropylamine; chlorophosphoric acid diphenyl ester In acetonitrile at 0℃; for 0.75h; Stage #2: ethyl 2-sulfanylacetate With N-ethyl-N,N-diisopropylamine In acetonitrile at 0℃; for 1h; | 74% |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
chlorophosphoric acid diphenyl ester
Conditions | Yield |
---|---|
Stage #1: (5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester; chlorophosphoric acid diphenyl ester With N-ethyl-N,N-diisopropylamine In acetonitrile for 2h; Substitution; Stage #2: (S)-4-mercapto-2-oxoppyrrolidine With N-ethyl-N,N-diisopropylamine In acetonitrile for 1h; Substitution; | 67% |
t-butyldimethylsiyl triflate
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Stage #1: (5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester With trifluoromethylsulfonic anhydride; triethylamine In dichloromethane at -78℃; for 0.5h; Inert atmosphere; Stage #2: t-butyldimethylsiyl triflate In dichloromethane at -78℃; for 0.5h; Inert atmosphere; Stage #3: (E)-(4-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)phenyl)methanol With tris-(dibenzylideneacetone)dipalladium(0); potassium hydroxide In dichloromethane; water; N,N-dimethyl-formamide at -78 - 30℃; for 1h; Inert atmosphere; | 59% |
p-hydroxymethylphenylboronic acid
Triethylsilyl trifluoromethanesulfonate
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Stage #1: (5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester With trifluoromethylsulfonic anhydride; triethylamine In dichloromethane at -78℃; for 0.5h; Inert atmosphere; Stage #2: triethylsilyl trifluoromethyl sulfonate In dichloromethane at -78℃; for 1h; Inert atmosphere; Stage #3: p-hydroxymethylphenylboronic acid With tris-(dibenzylideneacetone)dipalladium(0); potassium hydroxide In water; N,N-dimethyl-formamide at -78 - 30℃; for 1.5h; Inert atmosphere; | 33% |
trifluoromethylsulfonic anhydride
trimethylsilyl trifluoromethanesulfonate
tributylethynyltin
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Stage #1: trifluoromethylsulfonic anhydride; (5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester With diisopropylamine In tetrahydrofuran at -78℃; for 0.25h; Addition; Stage #2: trimethylsilyl trifluoromethanesulfonate With triethylamine In tetrahydrofuran at -78℃; for 0.333333h; Etherification; Stage #3: tributylethynyltin With trifuran-2-yl-phosphane; tris-(dibenzylideneacetone)dipalladium(0); zinc(II) chloride In tetrahydrofuran; 1-methyl-pyrrolidin-2-one; diethyl ether at 20℃; for 2h; Addition; Stille coupling; | 32% |
cis-1-cyano-4-mercaptocyclohexane
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (6S)-<(1R)-hydroxyethyl>-2--(5R)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With diisopropylamine; chlorophosphoric acid diphenyl ester 1) CH3CN, 0 to 5 deg C, 1 h, 2) CH3CN, RT, 20 h; Yield given. Multistep reaction; |
cis-3-mercaptocyclopentanecarboxamide
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (6S)-<(1R)-hydroxyethyl>-2--(5R)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With diisopropylamine; chlorophosphoric acid diphenyl ester 1) CH3CN, 0 to 5 deg C, 1 h, 2) DMF, RT, 3 d; Yield given. Multistep reaction; |
cis-4-mercaptocyclohexanecarboxamide
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (6S)-<(1R)-hydroxyethyl>-2--(5R)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With diisopropylamine; chlorophosphoric acid diphenyl ester 1) CH3CN, 0 to 5 deg C, 1 h, 2) DMF, RT, 3 d; Yield given. Multistep reaction; |
cis-3-mercapto-1-(p-nitrobenzyloxycarboxylamino)cyclopentane
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (6S)-<(1R)-hydroxyethyl>-2--(5R)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With diisopropylamine; chlorophosphoric acid diphenyl ester 1) CH3CN, 0 to 5 deg C, 1 h, 2) CH3CN, RT, 20 h; Yield given. Multistep reaction; |
cis-4-mercapto-1-(p-nitrobenzyloxycarbonylamino)cyclohexane
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (6S)-<(1R)-hydroxyethyl>-2--(5R)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With diisopropylamine; chlorophosphoric acid diphenyl ester 1) CH3CN, 0 to 5 deg C, 1 h, 2) CH3CN, RT, 6 d; Yield given. Multistep reaction; |
cis-4-(p-nitrobenzyloxycarbonylaminomethyl)cyclohexylthiol
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (6S)-<(1R)-hydroxyethyl>-2--(5R)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With diisopropylamine; chlorophosphoric acid diphenyl ester 1) CH3CN, 0 to 5 deg C, 1 h, 2) DMF, RT, 6 d; Yield given. Multistep reaction; |
trifluoromethylsulfonic anhydride
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (5R,6S)-6-[(1R)-1-hydroxyethyl]-2-trifluoromethylsulphonyloxy-carbapen-2-em-3carboxylate
Conditions | Yield |
---|---|
With diisopropylamine In tetrahydrofuran at -70℃; for 0.5h; Addition; Title compound not separated from byproducts; |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
chlorophosphoric acid diphenyl ester
p-nitrobenzyl (5R,6S)-2-diphenoxy phosphoryloxy-6-[(R)-1-hydroxyethyl]-1-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile at 0℃; for 1h; Addition; | |
With dmap; N-ethyl-N,N-diisopropylamine In acetonitrile |
p-toluenesulfonylanhydride
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-7-oxo-3-(toluene-4-sulfonyloxy)-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at -60 - 0℃; |
diazomethane
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
In 1,4-dioxane at 20℃; Methylation; |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: dioxane / 20 °C 2: H2 / 10 percent Pd/C / ethyl acetate / 0 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Et3N / CH2Cl2 / -60 - 0 °C 2: Et3N / CH2Cl2 / 12 h / -70 °C 3: 67 percent / Bu4N(+)Cl(-), K2CO3 / PdCl2(dppf) / tetrahydrofuran; H2O; CH2Cl2 / 1.67 h / 30 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
(5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-3-(toluene-4-sulfonyloxy)-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Et3N / CH2Cl2 / -60 - 0 °C 2: Et3N / CH2Cl2 / 12 h / -70 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-diisopropylethylamine / acetonitrile / 1 h / 0 °C 2: N,N-diisopropylethylamine / acetonitrile 3: H2 / 10 percent Pd-C / tetrahydrofuran; aq. phosphate buffer / 2.5 h / 20 °C / pH 7 View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: N,N-diisopropylethylamine / acetonitrile / 1 h / 0 °C 2: N,N-diisopropylethylamine / acetonitrile View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (5R,6S)-2-ethynyl-6-[(1R)-1-hydroxyethyl]carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: diisopropylamine / tetrahydrofuran / 0.25 h / -78 °C 1.2: Et3N / tetrahydrofuran / 0.33 h / -78 °C 1.3: 32 percent / tri(2-furyl)phosphine / tris(dibenzylideneacetone)dipalladium; ZnCl2 / 1-methyl-pyrrolidin-2-one; tetrahydrofuran; diethyl ether / 2 h / 20 °C 2.1: 85 percent / AcOH; aq. Bu4NF / tetrahydrofuran / 1.75 h / 0 - 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diisopropylamine / tetrahydrofuran / 0.5 h / -70 °C 2: Ph3As / ZnCl2, LiCl; tris(dibenzylideneacetone)dipalladium / tetrahydrofuran / 3 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-7-oxo-3-thiazol-5-yl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diisopropylamine / tetrahydrofuran / 0.5 h / -70 °C 2: Ph3As / ZnCl2, LiCl; tris(dibenzylideneacetone)dipalladium / tetrahydrofuran / 3 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-Nitrobenzyl-(5R,6S)-6-[(1R)-hydroxyethyl]-2-(1-methylpyrazol-3-yl)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diisopropylamine / tetrahydrofuran / 0.5 h / -70 °C 2: Ph3As / ZnCl2, LiCl; tris(dibenzylideneacetone)dipalladium / tetrahydrofuran / 3 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-3-(3-methyl-isoxazol-5-yl)-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: diisopropylamine / tetrahydrofuran / 0.25 h / -78 °C 1.2: Et3N / tetrahydrofuran / 0.33 h / -78 °C 1.3: 32 percent / tri(2-furyl)phosphine / tris(dibenzylideneacetone)dipalladium; ZnCl2 / 1-methyl-pyrrolidin-2-one; tetrahydrofuran; diethyl ether / 2 h / 20 °C 2.1: 85 percent / AcOH; aq. Bu4NF / tetrahydrofuran / 1.75 h / 0 - 20 °C 3.1: Et3N / CH2Cl2; hexane / 1 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-3-(3-isopropyl-isoxazol-5-yl)-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: diisopropylamine / tetrahydrofuran / 0.25 h / -78 °C 1.2: Et3N / tetrahydrofuran / 0.33 h / -78 °C 1.3: 32 percent / tri(2-furyl)phosphine / tris(dibenzylideneacetone)dipalladium; ZnCl2 / 1-methyl-pyrrolidin-2-one; tetrahydrofuran; diethyl ether / 2 h / 20 °C 2.1: 85 percent / AcOH; aq. Bu4NF / tetrahydrofuran / 1.75 h / 0 - 20 °C 3.1: Et3N / CH2Cl2; hexane / 1 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-3-(3-methoxymethyl-isoxazol-5-yl)-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diisopropylamine / tetrahydrofuran / 0.5 h / -70 °C 2: Ph3As / ZnCl2, LiCl; tris(dibenzylideneacetone)dipalladium / tetrahydrofuran / 3 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (5R,6S)-6-[(1R)-hydroxyethyl]-2-(1-phenylpyrazol-3-yl)-carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diisopropylamine / tetrahydrofuran / 0.5 h / -70 °C 2: 67 percent / Ph3As / ZnCl2, LiCl; tris(dibenzylideneacetone)dipalladium / tetrahydrofuran / 3 h / 20 °C View Scheme |
(5R,6S)-6-[(R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid p-nitrobenzyl ester
p-nitrobenzyl (5R,6S)-2-[3-(phenyl)isoxazol-5-yl]-6-[(1R)-1-hydroxyethyl]carbapen-2-em-3-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: diisopropylamine / tetrahydrofuran / 0.25 h / -78 °C 1.2: Et3N / tetrahydrofuran / 0.33 h / -78 °C 1.3: 32 percent / tri(2-furyl)phosphine / tris(dibenzylideneacetone)dipalladium; ZnCl2 / 1-methyl-pyrrolidin-2-one; tetrahydrofuran; diethyl ether / 2 h / 20 °C 2.1: 85 percent / AcOH; aq. Bu4NF / tetrahydrofuran / 1.75 h / 0 - 20 °C 3.1: 62 percent / Et3N / CH2Cl2; hexane / 1 h / 20 °C View Scheme |
Molecular Structure of P-Nitrobenzyl-6-(1-hydroxyethyl)-1-azabicyclo(3.2.0)heptane-3,7-dione-2-carboxylate (CAS NO.74288-40-7):
Empirical Formula: C16H16N2O7
Molecular Weight: 348.3074
Index of Refraction: 1.631
Surface Tension: 71.9 dyne/cm
Density: 1.5 g/cm3
Flash Point: 317.4 °C
Enthalpy of Vaporization: 94.09 kJ/mol
Boiling Point: 601.3 °C at 760 mmHg
Vapour Pressure: 2.63E-15 mmHg at 25°C
Product Categories: (intermediate of imipenem,panipenem);Intermediates & Fine Chemicals; Pharmaceuticals
The usage of P-Nitrobenzyl-6-(1-hydroxyethyl)-1-azabicyclo(3.2.0)heptane-3,7-dione-2-carboxylate (CAS NO.74288-40-7) is as imipenem intermediate.
P-Nitrobenzyl-6-(1-hydroxyethyl)-1-azabicyclo(3.2.0)heptane-3,7-dione-2-carboxylate ,its cas register number is 73323-65-6. It also can be called 1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-(1-hydroxyethyl)-3,7-dioxo-, (4-nitrophenyl)methyl ester, (5R,6S)- ; 1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[(1R)-1-hydroxyethyl]-3,7-dioxo-, (4-nitrophenyl)methyl ester, (5R,6S)- ; (1'R,5R,6S)-6-(1-Hydroxy-ethyl)-3,7-dioxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester and so on.
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