1,3-Thiazolylidenehydrazinylidene ethylpyridinium bromide monohydrate, 1,3-thiazolylidenehydrazinium bromide and 1,3-
thiazolylidenehydrazine derivatives were synthesized by heterocyclization of 2-(1-substituted
ethylidene)hydrazinecarbothioamides, characterized and screened for their anti-bacterial activities. 3h showed the highest
inhibitory effect against all types of bacterial compared to Moxifloxacin. The structures of synthesized compounds were
established by spectroscopic (IR, 1H, 13C-NMR, Mass) and X-ray analyses.