112256-76-5

Upstream product

• 112256-77-6 (3S,4S)-4-<(S)-1-benzyloxyethyl>-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-1-di-p-anisylmethyl-2-azetidinone 
• 112256-78-7 (3S,4S)-4-<(S)-1-benzyloxyethyl>-1--3-<(R)-1-hydroxyethyl>-2-azetidinone 
• 115026-43-2 (3S,4S)-3-acetyl-4-<(S)-1-benzyloxyethyl>-1-(di-p-anisylmethyl)-2-azetidinone 
• 90-96-0 bis(p-methoxyphenyl)methanone 
• 127254-18-6 [(S)-2-Benzyloxy-prop-(E)-ylidene]-[bis-(4-methoxy-phenyl)-methyl]-amine 
• 18162-48-6 tert-butyldimethylsilyl chloride 
• 126748-44-5 N-[bis(4-methoxyphenyl)methyl]-formamide 
• 115075-46-2 (3S,4S)-4-<(S)-1-benzyloxyethyl>-1--3-<(S)-1-hydroxyethyl>-2-azetidinone 
• 19293-62-0 p,p'-dimethoxybenzhydrylamine 

Downstream Products

• 112256-75-4 (3S,4S)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-1-di-p-anisylmethyl-4-<(S)-1-(p-toluenesulfonyloxy)ethyl>-2-azetidinone 
• 112256-75-4 Toluene-4-sulfonic acid (S)-1-{(2S,3S)-1-[bis-(4-methoxy-phenyl)-methyl]-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-ethyl ester 
• 112256-73-2 (3S,4R)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-1-di-p-anisylmethyl-4-vinyl-2-azetidinone 
• 76899-07-5 (3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one 
• 126193-08-6 (3S,4S)-4-acetyl-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-1-di-p-anisylmethyl-2-azetidinone 

Relevant academic research and scientific papers

A Synthesis of (3S,4R)-3--4-carboxymethyl-2-azetidinone, the Thienamycin Intermadiate, from (S)-Ethyl Lactate

The title thienamycin intermadiate was efficiently synthesized from (S)-ethyl lactate (3) by subjecting (3S,4S)-32-acetyl-4--2-azetidinone readily obtainable from 3, to sequential reactions in which base catalyzed elimination and reg