131857-37-9

Basic information

• Product Name: (6R,7R)-3-Benzhydryloxy-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester
• Synonyms: (6R,7R)-3-Benzhydryloxy-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester
• CAS NO: 131857-37-9
• Molecular Weight: 666.797
• Mol File: 131857-37-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (6R,7R)-3-Benzhydryloxy-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester(CAS DataBase Reference)
• NIST Chemistry Reference: (6R,7R)-3-Benzhydryloxy-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester(131857-37-9)
• EPA Substance Registry System: (6R,7R)-3-Benzhydryloxy-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester(131857-37-9)

Safety Data

• Hazardous Substances Data: 131857-37-9(Hazardous Substances Data)

Upstream product

• 131857-35-7 1-<3-chloro-2-(diphenylmethyloxy)-1-(diphenylmethyloxycarbonyl)-1-propen-1-yl>-3-(phenylacetamido)-4-(phenylsulfonylthio)-2-azetidinone 
• 146340-04-7 1-<3-chloro-2-(diphenylmethyloxy)-1-(diphenylmethyloxycarbonyl)-1-propen-1-yl>-3-(phenylacetamido)-4-(phenylsulfonylthio)-2-azetidinone 
• 164201-44-9 1-<3-chloro-1-(diphenylmethyloxycarbonyl)-2-hydroxy-1-propen-1-yl>-3-(phenylacetamido)-4-(phenylsulfonylthio)-2-azetidinone 

Downstream Products

• 54639-48-4 (6R,7R)-benzhydryl 3-hydroxy-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 

Relevant articles and documents

Synthesis of 3-hydroxycephems from penicillin G through cyclization of chlorinated 4-(phenylsulfonylthio)-2-azetidinones promoted by a BiCl3/Sn or TiCl4/Sn bimetal redox system

A novel access to 3-hydroxycephems was attained from penicillin G via the C=C bond cleavage of 1-(1-alkoxycarbonyl-2-chloromethyl-2-propenyl)-4-(phenylsulfonylthio)- 2-azetidinones by successive treatment with RuCl3/HIO4 and HIO4/CuSO4 and reductive cyclization of I-(I-alkoxycarbonyl-3-chloro-2-hydroxy-1-propenyl)-4-(phenylsulfonylth io)-2-azetidinones on treatment with a newly devised BiCl3/Sn or TiCl4/Sn bimetal redox couple in DMF containing pyridine.