Novel 2-(2-(4-aryloxybenzylidene) hydrazinyl)benzothiazole derivatives as anti-tubercular agents

A series of structurally novel, substituted 2-(2-(4-aryloxybenzylidene) hydrazinyl)benzothiazole derivatives incorporating 2-hydrazinyl benzothiazole and 4-(aryloxy)benzaldehyde were designed and synthesized using molecular hybridization approach. All the synthesized compounds exhibited promising activity (MIC 1.5-29.00 mu g/ml) against Mycobacterium tuberculosis H37Rv strains of using REMA. Five of the evaluated compounds exhibit MIC <3.0 mu g/ml. Compound (E)-6-chloro-2-(2-(4-(2,4-dichlorophenoxy) benzylidene) hydrazinyl) benzothiazole showed MIC of 1.5 mu g/ml. Thus, this compound could act as a potential lead for further development of new anti-tubercular drugs. (C) 2011 Elsevier Ltd. All rights reserved.