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BİNGÖL ÖZAKPINAR, ÖZLEM

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BİNGÖL ÖZAKPINAR

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ÖZLEM

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2016 - 20202
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Author: ŞENKARDEŞ, SEVİL × Subject: DRUG DISCOVERY ×

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    Synthesis of Diflunisal Thiazolidinones as Anticancer Agents
    (BENTHAM SCIENCE PUBL LTD, 2016) ŞENER, AZİZE; Senkardes, Sevil; Ozakpinar, Ozlem B.; Ozsavci, Derya; Sener, Azize; Cevik, Ozge; Kucukguzel, S. Guniz
    A series of diflunisal 4-thiazolidinones were synthesized. Some selected compounds were determined at one dose towards the full panel of 60 human cancer cell lines by National Cancer Institute. 2',4'-Difluoro-4-hydroxy-N-[4-oxo-2-(thiophen-2-yl)-1,3-thiazolidin-3-yl]biphenyl-3-carboxamide (4a) demonstrated the most marked effect on K-562 cancer cell line with 58.59 % growth inhibition at 10 mu M. Compound 4a was evaluated in vitro using the MTT colorimetric method against human leukemia cell line K-562 and mouse embryonic fibroblasts cell line NIH-3T3 at different doses for cell viability and growth inhibition. Compound 4a exhibited anticancer activity with IC50 value of 5.2 mu M against K-562 cells and did not display cytotoxicity towards NIH-3T3 cells compared with diflunisal. In addition, this compound could be an interesting prototype as an antiproliferative agent.
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    Synthesis and Anticancer and Antimicrobial Evaluation of Novel Ether-linked Derivatives of Ornidazole
    (TURKISH PHARMACISTS ASSOC, 2020-02-01) KÜÇÜKGÜZEL, İLKAY; Senkardes, Sevil; Kulabas, Necta; Bingol Ozakpinar, Ozlem; Kalayci, Sadik; Sahin, Fikrettin; Kucukguzel, Ilkay; Kucukguzel, S. Guniz
    Objectives: Some novel 1-(2-methyl-5-nitro-1H-imidazol-1-yl)-3-(substituted phenoxy)propan-2-ol derivatives (3a-g) were designed and synthesized. Materials and Methods: Compounds 3a-g were obtained by refluxing ornidazole (1) with the corresponding phenolic compounds (2a-g) in the presence of anhydrous K2CO3 in acetonitrile. Results: Following the structure elucidation, the in vitro antimicrobial activity and cytotoxic effects of compounds 3a-g on K562 leukemia and NIH/3T3 mouse embryonic fibroblast cells were measured. As a part of this study, the compliance of the compounds with the drug-likeness properties was evaluated. The physico-chemical parameters (log P, TPSA, nrotb, number of hydrogen bond donors and acceptors, logS) were calculated using the software OSIRIS. Conclusion: All the synthesized compounds except 3a showed significant activity (MIC=4-16 mu g mL(-)(1)) against the bacterial strain Bacillus subtilis as compared to the standard drug, whereas antileukemic activities were rather limited. Furthermore, all the compounds were nontoxic and the selectivity index outcome indicated that the antileukemic and antimicrobial effects of the compounds were selective with good estimated oral bioavailability and drug-likeness scores.