title: Synthesis of novel thiazolone-based compounds containing pyrazoline moiety and evaluation of their anticancer activity.
abstract: To examine the anticancer activity several novel thiazolone-based compounds containing 5-aryl-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl framework were obtained. Reaction of 5-aryl-3-phenyl-4,5-dihydropyrazole with 4-thioxo-2-thiazolidinone or 2-carbethoxymethylthio-2-thiazoline-4-one yielded starting 4- (1 and 2) or 2-substituted (11 and 12) thiazolones which were utilized in Knoevenagel condensation for obtaining a series of 5-arylidene derivatives 3-10, 13-18. Alternatively 11, 12 and their 5-arylidene derivatives were synthesized by means of 3-phenyl-5-aryl-1-thiocarbamoyl-2-pyrazoline as S,N-binucleophile via [2+3]-cyclocondensation approach. The structures of compounds were determined by (1)H, (13)C NMR, LC-MS, EI-MS and X-ray analysis. The in vitro anticancer activity of synthesized compounds were tested by the National Cancer Institute and most of them displayed anticancer activity on leukemia, melanoma, lung, colon, CNS, ovarian, renal, prostate and breast cancer cell lines. Relations between structure and activity are discussed, the most efficient anticancer compound 16 was found to be active with selective influence on colon cancer cell lines, especially on HT 29 (logGI(50)=-6.37).
authors.affiliation: Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv 79010, Ukraine.
authors.forename: Dmytro
authors.initials: D
authors.lastname: Havrylyuk
authors.forename: Borys
authors.initials: B
authors.lastname: Zimenkovsky
authors.forename: Olexandr
authors.initials: O
authors.lastname: Vasylenko
authors.forename: Lucjusz
authors.initials: L
authors.lastname: Zaprutko
authors.forename: Andrzej
authors.initials: A
authors.lastname: Gzella
authors.forename: Roman
authors.initials: R
authors.lastname: Lesyk
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D006801:Humans; D009369:Neoplasms / Q000188:drug therapy / Q000473:pathology*; D011720:Pyrazoles / Q000737:chemistry*; D013844:Thiazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D011720:Pyrazoles; D013844:Thiazoles; C031280:pyrazole