title: [Antimicrobial activity of derivatives of 1,2,4-benzothiadiazine-1,1-dioxide. VIII].
abstract: The antimicrobial activity of a series of fluoro derivatives of benzothiadiazine and sulfonamides was studied. The compounds tested can be grouped as: a) 3-alkylmercapto derivatives of 6-trifluoromethyl-1,2,4-benzothiadiazine-1,1-dioxide (III leads to VI); the 3-mercapto precursor (VII) and the related 3-picolinic salt (VIII); b) 3-trifluoromethyl derivatives of 1,2,4-benzothiadiazine-1,1-dioxide and of its benzene substituted derivatives (IX leads to XVI); c) trifluoroacetylaminobenzenesulfonamides (XVII leads to XXV). Two of the 3-alkylmercapto compounds [(V) and (VI)] showed marked inhibitory activity against some strains of Staphylococcus, Streptococcus and Diplococcus. None of the compounds tested proved active against Gram-negative schizomycetes (genera Salmonella, Shigella, Escherichia, Proteus, Pseudomonas, Enterobacter, Klebsiella, Serratia, Yersinia, Providencia) or against yeasts (Candida).
mesh_terms: D001581:Benzothiadiazines / Q000138:chemical synthesis / Q000494:pharmacology*; D004353:Drug Evaluation, Preclinical; D008826:Microbial Sensitivity Tests; D013210:Staphylococcus / Q000187:drug effects; D013291:Streptococcus / Q000187:drug effects; D013449:Sulfonamides / Q000138:chemical synthesis / Q000494:pharmacology
chemical_list: D001581:Benzothiadiazines; D013449:Sulfonamides
vernacular_title: Azione antimicrobica di derivati dell'1,2,4-benzotiadiazin-1,1-diossido. Nota VIII.