Synthesis of some 2- and 4-methoxyacetylaminobenzenesulphonylamino acid derivatives and their antimicrobial activity.

The synthesis of a series of 3-acetylamino-4-methoxy-,2-acetylamino-4-methoxy- and 2-methoxy-5-acetylaminobenzenesulphonylamino acids, methyl esters, hydrazides and dipeptide methyl esters (IV-LXI) is described. Some o-, m- and p-anisidine and 2-aminopyridine derivatives have also been prepared by analogous procedure. Twenty of various by substituted acetylaminomethoxybenzenesulphonylamino acid and dipeptide derivatives were found to possess specific antimicrobial activities towards different microorganisms.