128227-47-4

Upstream product

• 119588-71-5 (2S,3R)-2-Benzyloxycarbonylamino-3-hydroxy-3-[(2R,4R,5S)-4-methyl-5-phenyl-3-(toluene-4-sulfonyl)-oxazolidin-2-yl]-propionic acid 
• 128227-44-1 {(1S,2R)-2-Hydroxy-1-methoxycarbamoyl-2-[(2R,4R,5S)-4-methyl-5-phenyl-3-(toluene-4-sulfonyl)-oxazolidin-2-yl]-ethyl}-carbamic acid benzyl ester 
• 31139-36-3 dibenzyl dicarbonate 
• 128227-45-2 ((1S,2R)-2-[1,3]Dithian-2-yl-2-hydroxy-1-methoxycarbamoyl-ethyl)-carbamic acid benzyl ester 

Relevant academic research and scientific papers

ASYMMETRIC SYNTHESIS OF 3,4-CIS-SUBSTITUTED β-LACTAMS VIA CHIRAL NOREPHEDRINE-DERIVED OXAZOLIDINES.

A diastereo- and enantioselective approach to functionalized 3,4-cis-β-lactams 9 and 16 was developed based on the use of chiral norephedrine-derived oxazolidines.The key-steps in the synthesis of 9 (Scheme 1) are the potassium hypochlorite epoxidation of