Synthesis and Biochemical Investigation of (Thiazin, Oxadiazol, Thiadiazol)-Derivatives

The study involved synthesis of six and five-membered rings from hetero cyclic compounds containing sulfur and nitrogen with oxygen atoms such as (thiazine, oxadiazol, thiadiazol)-derivatives., some of compounds were prepared from condensation reaction and other by chalcone. The synthesized compounds [1–10] were characterized by many methods {FT.IR-spectra, H.NMR-spectra, (C.H.N)-analysis} and tested for their potential antibacterial {Gram(+) positive and Gram(−) negative} and melting points.