AN IMPROVED ENTRY TO A KEY INTERMEDIATE FOR THIENAMYCIN SYNTHESIS FROM METHYL (R)-3-HYDROXYBUTANOATE VIA DIRECT EPIMERIZATION AT C-3 ON 2-AZETIDINONE RINGS

Article abstract of DOI:10.1016/S0040-4039(00)98775-6

An improved entry to a key thienamycin intermediate is described which relies upon the direct epimerization at C-3 of the 3-(1-hydroxyethyl)-2-azetidinone derivatives readily obtained from methyl (R)-3-hydroxybutanoate.