title: Synthesis and antimicrobial activity of some thiazolinyl tetrahydrobenzo[b]thiophenes and thiazolinyl tetrahydrobenzothieno[2,3-d]pyrimidin-4-ones.
abstract: Two series of novel 3-carbethoxy-2-(3',4'-disubstituted-2',3'- dihydrothiazol-2'-ylidenamino)-4,5,6,7-tetrahydrobenzo[b] thiophenes (3a-o) and 2-methyl-3-(3',4'-disubstituted-2',3'-dihydrothiazol-2'-ylidena mino-5,6,7,8- tetrahydrobenzothieno[2,3-d]pyrimidin-4(3H) ones (8a-o) have been synthesized and tested for antimicrobial activity. All members of the series have been found to exhibit in vitro antibacterial and/or antifungal activities. Activity was optimized by cyclization to the thienopyrimidin-4-ones. In particular, compounds 8e and 8fd were the most active against the 3 tested microorganisms. Their antifungal activity was higher than that exhibited by nystatin while their MIC was found to be nearly equal to that of nystatin.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Alexandria, Egypt.
authors.forename: O M
authors.initials: OM
authors.lastname: Aboulwafa
authors.forename: K A
authors.initials: KA
authors.lastname: Ismail
authors.forename: E A
authors.initials: EA
authors.lastname: Koreish
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000494:pharmacology; D002176:Candida albicans / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D009761:Nystatin / Q000494:pharmacology; D011744:Pyrimidinones / Q000138:chemical synthesis* / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects; D013844:Thiazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D013876:Thiophenes / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000935:Antifungal Agents; D011744:Pyrimidinones; D013844:Thiazoles; D013876:Thiophenes; D009761:Nystatin