title: Synthesis and primary cytotoxicity evaluation of new 5-bromo-3-substituted-hydrazono-1H-2-indolinones.
abstract: In this study a new series of 5-bromo-3-[(3-substituted-5-methyl-4-thiazolidinone-2-ylidene)-hydrazono]-1H-2-indolinones (3a-i) and 5-bromo-3-[(2-thioxo-3-substituted-4, 5-imidazolidinedione-1-yl)imino]-1H-2-indolinones (4a-f) was synthesized by the cyclization of 5-bromo-3-(N-substituted-thiosemicarbazono)-1H-2-indolinones (2a-i)with ethyl 2-bromopropionate in anhydrous ethanolic medium and oxalyl cloride in anhydrous diethyl ether, respectively. Six compounds chosen as prototypes were evaluated in the 3-cell line, one dose in vitro primary cytotoxicity assay. Four of them were evaluated against the full panel of 60 human tumor cell lines at a minimum of five concentrations at 10-fold dilutions. Among the compounds tested, the 4-fluoro-phenylthiosemicarbazone derivative 2f showed the most favorable cytotoxicity. This compound demonstrated the most marked effects on a breast cancer cell line (BT-549, log(10)GI(50) value -6.40), a non small cell lung cancer cell line (NCI-H23, log(10)GI(50) value -6.10), and an ovarian cancer cell line (IGROV1, log(10)GI(50) value -6.02).
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Istanbul, Istanbul, Turkey.
authors.forename: Nilgün
authors.initials: N
authors.lastname: Karali
authors.forename: Nalan
authors.initials: N
authors.lastname: Terzioğlu
authors.forename: Aysel
authors.initials: A
authors.lastname: Gürsoy
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D002460:Cell Line; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007202:Indicators and Reagents; D007211:Indoles / Q000138:chemical synthesis* / Q000494:pharmacology*; D013058:Mass Spectrometry; D013055:Spectrophotometry, Infrared; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D007202:Indicators and Reagents; D007211:Indoles