[Biological effects of new PAS derivatives on Mycobacterium tuberculosis]

|July 1, 1985

Abstract:

A new series of p-aminosalicylic acid derivatives were tested in vitro against Myc.tbc. H37Rv strain and clinically isolated pathogenic mycobacteria. 4 - [alpha - (benzylamino - thiocarbonylthio) - acetamido] - salicylic acid was most active, 4 - [alpha - methyl - alpha - (furfurylamino - thiocarbonylthio) - acetamido] - salicylic acid was more active than PAS. 4 - [alpha - (ethylamino - thiocarbonylthio) - acetamido] - salicylic acid, and 4 - [alpha - methyl - alpha - (ethylamino - thiocarbonylthio) - acetamido] - salicylic acid derivatives were nearly as active as PAS. The causes of increase in tuberculostatic activity can be assumed to be the isothiocyanate groups, which are the products of hydrolysis of the compounds investigated.

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