process for the production of (+) - (2s, 3s) - 3 - (2aminophenyl) thiometon 2 hydroxy 3 - (4methoxyphenyl) propions uremethylester.

摘要

Process for the preparation of (+)-(2S,3S) methyl 3-[2-amino- phenyl)thio]-2-hydroxy-3-(4-methoxyphenyl)propionates corresponding to the general formula (I) …IMAGE… in which X denotes a hydrogen or chlorine atom. …??A 2-aminothiophenol substituted by X is reacted with (-)-(2R,3S) methyl 2,3-epoxy-3-(4-methoxyphenyl)propionate.