title: New thiazolo[4,5-d]pyrimidine derivatives as potential antimicrobial agents.
abstract: In this study, by starting from ethyl 4-amino-2,3-dihydro-3-phenyl-2-thioxothiazole-5-carboxylate (1), three compounds having 2,3-dihydro-3-phenyl-5-mercapto-6-alkyl/phenyl-2-thioxothiazolo[4,5- d]pyrimidin-7(6H)-one (2a-c) structure and their 5-(4'-nonsubstituted/-substituted benzoylmethyl)thio derivatives (3a-l) were synthesized. The antimicrobial activities of the synthesized compounds were investigated against some bacteria and fungi using the microdilution method. 2,3-Dihydro-3,6-diphenyl-5-(4'-bromobenzoylmethyl)thio-2-thioxothiazolo [4,5-d]pyrimidin-7(6H) one (3k) possessing remarkable activity against Gram-positive bacteria and yeast like fungi was found to be the most active compound in this series.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.
authors.forename: H
authors.initials: H
authors.lastname: Urgun
authors.forename: A
authors.initials: A
authors.lastname: Balkan
authors.forename: M
authors.initials: M
authors.lastname: Ozalp
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D005658:Fungi / Q000187:drug effects; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents