Synthesis of N-acetylcysteine compounds.

The preparation of some anilides, esters and amides of N-acetyl and N,S-diacetyl-cysteine is described. Of the compounds synthesized, particular interest was aroused by the p-hydroxyanilide derivatives of N-acetyl and N,S-diacetyl-L-cysteine owing to their analgesic, antiinflammatory and antipyretic activity.