title: New 5-substituted thiazolo[3,2-b][1,2,4]triazol-6-ones: synthesis and anticancer evaluation.
abstract: Following [2+3]-cyclocondensation reaction of 1,2,4-triazole-3(5)-thiol with N-arylmaleimides or with monochloroacetic acid and oxocompounds, N-(R-phenyl)-(6-oxo-5,6-dihydro[1,3]thiazol[3,2-b][1,2,4]triazol-5-yl)acetamides (1-5) and 5-ylidene-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-ones (6-11) were synthesized as possible anticancer agents. Anticancer activity evaluation on the full panel of nearly 60 human cancer cell lines showed that synthesized compounds displayed this kind of activity on renal cancer, leukemia, colon cancer, breast cancer and melanoma cell lines. It was shown that 5-ylidene-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-ones are characterized with more potent anticancer activity than respective amides. The structures of the compounds were determined by (1)H NMR, (13)C NMR and X-ray analysis.
authors.affiliation: Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv, Ukraine. dr_r_lesyk@org.lviv.net
authors.forename: Roman
authors.initials: R
authors.lastname: Lesyk
authors.forename: Olena
authors.initials: O
authors.lastname: Vladzimirska
authors.forename: Serhiy
authors.initials: S
authors.lastname: Holota
authors.forename: Lucjusz
authors.initials: L
authors.lastname: Zaprutko
authors.forename: Andrzej
authors.initials: A
authors.lastname: Gzella
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D045744:Cell Line, Tumor; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D014230:Triazoles / Q000138:chemical synthesis* / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D014230:Triazoles