76144-20-2

Upstream product

• 140-11-4 Benzyl acetate 
• 76144-19-9 (S)-4-carboxymethyl-2-azetidinone 
• 102851-16-1 (4S)-4-<<((4S)-4-Ethyl-2-thioxo-1,3-thiazolidin-3-yl)carbonyl>methyl>azetidin-2-one 
• 80528-12-7 benzyl 4-[(2R)-1-(tert-butyl-dimethylsilyl)-4-oxoazetidin-2-yl)but-2-enoate 
• 85657-42-7 (R)-4-((2S,3R)-2,4-Bis-benzyloxy-3-hydroxy-butyl)-azetidin-2-one 
• 85657-38-1 Acetic acid (1R,2S,4R)-2-benzyloxy-1-benzyloxymethyl-4-[1,3]dithiolan-2-yl-4-methoxycarbonylamino-butyl ester 
• 82468-78-8 [(R)-1-(tert-Butyl-dimethyl-silanyl)-4-oxo-azetidin-2-yl]-acetaldehyde 
• 103841-62-9 (R)-3-Benzylamino-4-chlorocarbonyl-butyric acid methyl ester; hydrochloride 
• 76144-15-5 1-benzyl 5-methyl (R)-3-tert-butoxycarbonylaminoglutarate 
• 80974-44-3 (S)-N-benzyl-4-carboxymethyl-2-azetidinone 
• 103841-69-6 (R)-N-benzyl-4-cyanomethyl-2-azetidinone 
• 86833-67-2 N-tert-butyldimethylsilyl-4(R)-allyl-2-azetidinone 
• 82468-77-7 4-allyl-2-azetidinone 
• 82448-89-3 ((R)-1-[1,3]Dithian-2-ylmethyl-but-3-enyl)-carbamic acid 2,2,2-trichloro-ethyl ester 

Downstream Products

• 76144-21-3 (R)-4-3'-benzyloxycarbonyl-3'-diazo-2'-oxopropyl-2-azetidinone 
• 76189-53-2 benzyl (3R,5R)-1-carba-2-oxopenam-3-carboxylate 

Relevant academic research and scientific papers

AN ENANTIOSELECTIVE ROUTE TO AN INTERMEDIATE OF THE CARBAPENAM SYSTEM FROM THE CHIRAL γ-BUTYROLACTONE

A new enantioselective synthesis of the keto ester(16) containing β-lactam ring system has been developed using the chiral lactone(1) as a starting material.

SYNTHETIC STUDIES ON OPTICALLY ACTIVE β-LACTAMS. CHIRAL SYNTHESIS OF CARBAPENAM RING SYSTEM STARTING FROM L-ASPARTIC ACID

Benzyl (3R,5R)-1-carba-2-oxopenam-3-carboxylate (12), a useful synthon for β-lactams having carbapenem ring system, was synthesized in optically pure state starting from L-aspartic acid.