DERIVATIVES OF THE MERCAPTOPROPIONAMIDO-ACETIC ACID, PROCESS FOR THE PREPARATION THEREOF AND COMPOSITIONS

摘要

Derivatives of the mercaptopropionamido-acetic acid prepared (a) by reacting glycine or an ester thereof with a halide of the alpha-bromo or beta-bromo-propionic acid and (b) by reacting the thus obtained derivative of the bromo-propionamideo-acetic acid with thioglicolic acid. Pharmaceutical and cosmetic compositions containing the new derivatives as active ingredient.