Synthesis and evaluation of some new benzothiazole derivatives as potential antimicrobial agents

As benzothiazole has proven to be good antimicrobial agent, a novel series of Schiff bases of benzothiazole derivatives were synthesized. Thus condensation of 5-[2-(1,3-benzothiazol-2-yl-amino) ethyl]-4-amino-3-mercapto-(4H)-1,2,4-triazole 5 with appropriate aromatic aldehydes afforded 5-[2-(1,3-benzothiazol-2-yl-amino)ethyl]-4-(arylideneamino)-3-mercapto-(4H)-1,2,4-triazoles 6a-g. Structures of the synthesized compounds were elucidated on the basis of elemental analyses and spectral data. All the synthesized compounds were screened for their antimicrobial activity. (c) 2010 Elsevier Masson SAS. All rights reserved.