73968-83-9

Basic information

• Product Name: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-, diphenylmethyl ester, (2S,5R)-
• Synonyms: (2S,5R)-3,3-Dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester
• CAS NO: 73968-83-9
• Molecular Formula: C21H21NO3S
• Molecular Weight: 367.469
• Mol File: 73968-83-9.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-, diphenylmethyl ester, (2S,5R)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-, diphenylmethyl ester, (2S,5R)-(73968-83-9)
• EPA Substance Registry System: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-, diphenylmethyl ester, (2S,5R)-(73968-83-9)

Safety Data

• Hazardous Substances Data: 73968-83-9(Hazardous Substances Data)

Upstream product

• 75527-84-3 diphenylmethyl 6,6-dibromopenicillanate 
• 107-13-1 acrylonitrile 
• 75527-85-4 benzhydryl 6β-bromopenicillanate 
• 74189-25-6 diphenylmethyl 6α-bromopenicillanate 
• 24158-88-1 6,6-dibromopenicillanic acid 
• 908093-98-1 diazodiphenylmethane 
• 24138-28-1 6-bromopenicillanic acid 
• 303730-77-0 diphenylmethyl (2S)-2-[(4S)-4-chloro-2-oxazetidin-1-yl]-2-(1-chlorothio-1-methylethyl)-acetate 
• 292638-85-8 acrylic acid methyl ester 
• 76517-35-6 6,6-diiodopenicillanic acid benzhydryl ester 
• 108-05-4 vinyl acetate 

Downstream Products

• 89789-07-1 (2S,3S,5R) 3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-yl-methyl)-4-thia-1-azabicyclo[3.2.0]heptane2-carboxylic acid 4,4-dioxide, diphenyl methyl ester 
• 85573-73-5 2β-(chloro)methyl-2α-methyl-6,6-dihydropenam-3α-carboxylic acid benzhydryl ester 
• 89786-04-9 tazobactam acid 
• 303730-77-0 diphenylmethyl (2S)-2-[(4S)-4-chloro-2-oxazetidin-1-yl]-2-(1-chlorothio-1-methylethyl)-acetate 

Relevant articles and documents

Syntheses of (6S)-cephalosporins from 6-aminopenicillanic acid

Two practical routes to (6S,7S)-cephalosporins from 6-aminopenicillanic acid (6-APA) are described. In the first, 6-APA was converted to (2S,4S,5S,6S)-penicillin sulfoxide 49, which underwent Morin ring expansion to a protected (6S,7S)-cephem 50. In the s

STEREOSELECTIVE SYNTHESIS OF 6α-HALOPENICILLANATES BY SAMARIUM(II) IODIDE PROMOTED REDUCTION OF 6,6-DIHALOPENICILLANATES

A mild an efficient samarium(II) iodide promoted-reduction of 6,6-dibromopenicillanates for stereoselective synthesis of 6α-bromopenicillanates has been developed.

Studies on 6-halo- and 6,6-dihalopenicillins: The rearrangement of methyl 6,6-dibromopenicillanate to 1,4-thiazepine

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