title: Synthesis and biological investigations of some novel thiazolylbenzimidazoles, and benzimidazolyl-thiazolo[4,5-d]pyrimidines.
abstract: Several thiazolyl-benzimidazoles 2, 4a-c were synthesized through the reaction of 2-cyanomethyl-1 H-benzimidazole with isothiocyanates followed by cyclization of the produced intermediates 1a-b with either ethyl bormocetate or phenacyl bromides. When the cyclization was performed in alkaline medium, thiophenyl-benzimidazoles 5, 6a, b were produced. Another series of thiazolyl-benzimidazoles 8 a-d was obtained from 2,3-dihydrothiazole-2-(3 H)-thiones 7a-d and 2-cyanomethyl-1 H-benzimidazole, then cyclized to the corresponding thiazolo[4,5-d]pyrimidine 10a-d. Most of the prepared compounds were evaluated for their in-vitro antibacterial, antifungal, anti-HIV and anti-cancer activities. They showed promising antifungal activity.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Alexandria, Egypt.
authors.forename: N S
authors.initials: NS
authors.lastname: Habib
authors.forename: S M
authors.initials: SM
authors.lastname: Rida
authors.forename: E A
authors.initials: EA
authors.lastname: Badawey
authors.forename: H T
authors.initials: HT
authors.lastname: Fahmy
authors.forename: H A
authors.initials: HA
authors.lastname: Ghozlan
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000494:pharmacology; D019380:Anti-HIV Agents / Q000138:chemical synthesis / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D001562:Benzimidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000494:pharmacology; D013844:Thiazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D019380:Anti-HIV Agents; D000935:Antifungal Agents; D000970:Antineoplastic Agents; D001562:Benzimidazoles; D011743:Pyrimidines; D013844:Thiazoles