Kurum Yazarı "Demirayak, Şeref" WoS İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Cytotoxic, Antiproliferative and Apoptotic Effects of New Benzimidazole Derivatives on A549 Lung Carcinoma and C6 Glioma Cell Lines
Yurttaş, Leyla; Demirayak, Şeref; Çiftçi, Gülsen Akalın (Bentham Science Publ LTD, 2015)Benzimidazole ring is a versatile structure which has been extensively utilized in medicinal chemistry. Since we are working on 1,2-disubstutited benzimidazoles, we have reported new antitumor active derivatives. As a ... -
Determination and evaluation of acid dissociation constants of some substituted 2-aminobenzothiazole derivatives
Öğretir, Cemil; Demirayak, Şeref; Tay, Naime Funda; Duran, M. (American Chemical Society, 2008)The acid dissociation constants of some 4- and/or 6-substituted 2-aminobenzothiazole and 4-substituted thiazole derivatives were determined spectroscopically. With the exception of a few, the first protonation was found ... -
In vitro antitumor activity evaluation of some 1,2,4-triazine derivatives bearing piperazine amide moiety against breast cancer cells
Yurttaş, Leyla; Demirayak, Şeref; Ilgın, Sinem; Atlı Eklioğlu, Özlem (Pergamon-Elsevier Science LTD, 2014)A series of 1,2,4-triazine derivatives bearing piperazine amide moiety has been synthesized and investigated for their potential anticancer activities. 1-[4-(5,6-Bis(4-subtituted phenyl)-1,2,4-triazin-3-yl) piperazin- ... -
Microwave supported synthesis of some novel 1,3-Diarylpyrazino[1,2-a] benzimidazole derivatives and investigation of their anticancer activities
Demirayak, Şeref; Kayagil, İsmail; Yurttaş, Leyla (Elsevier France-Editions Scientifiques Medicales Elsevier, 2011)The syntheses of 1,3-diarylpyrazino[1,2-a]benzimidazole derivatives and the investigation of their anticancer activities were studied. For this, 2-aryloylbenzimidazole derivatives were reacted with 2-bromoacetophenones in ... -
New chroman-4-one/thiochroman-4-one derivatives as potential anticancer agents
Demirayak, Şeref; Yurttaş, Leyla; Gündoğdu-Karaburun, Nalan; Karaburun, Ahmet Çağrı; Kayagil, İsmail (Elsevier Science BV, 2017)The synthesis of 3-[3/4-(2-aryl-2-oxoethoxy) arylidene] chroman/thiochroman-4-one derivatives (1-34) and evaluation of their anticancer activities were aimed in this work. Final compounds were obtained in multistep synthesis ... -
Pyridine-substituted thiazolylphenol derivatives: Synthesis, modeling studies, aromatase inhibition, and antiproliferative activity evaluation
Ertaş, Merve; Şahin, Zafer; Berk, Barkın; Yurttaş, Leyla; Biltekin, Sevde N.; Demirayak, Şeref (Wiley-V C H Verlag GMBH, 2018)Drugs used in breast cancer treatments target the suppression of estrogen biosynthesis. During this suppression, the main goal is to inhibit the aromatase enzyme that is responsible for the cyclization and structuring of ... -
QSAR studies on anticancer activities of some 6,8-diarylimidazo[1,2-a]pyrazine derivatives
Demirayak, Şeref; Kayagil, İsmail (Prous Science, Sa, 2007)… -
Some 6-substituted 3-aryl-7-oxothiazolo[4,5-d]pyrimidin-2(3H)-thione derivatives and their antimicrobial activities
Demirayak, Şeref; Ali, Faten Dali; Osman, Baland Sirvan; Tunalı, Yağmur (Taylor & Francis LTD, 2007)In this study, 3-aryl-6-substituted thiazolopyrimidin-2(3H)-thione derivatives 4 and 6 have been synthesized by reacting thiazolopyrimidines 2 with omega-bromoacetophenone 3 and 2-chloro-N-(2-thiazolyl)acetamides 5. The ... -
Spectroscopic Determination and Evaluation of Acidity Constants for Some Drug Precursor 2-Amino-4-(3-or 4-substituted phenyl) Thiazole Derivatives
Öğretir, Cemil; Demirayak, Şeref; Duran, Murat (American Chemical Society, 2010)Acid dissociation constants, K(a), of eight drug precursor 2-amino-4-(3- or 4-substituted phenyl) thiazole derivatives were determined using a UV-vis spectroscopic technique. The obtained K(a) values were evaluated by ... -
Spectroscopic determination of acid dissociation constants of some biologically active 6-phenyl-4,5-dihydro-3(2H)-pyridazinone derivatives
Öğretir, Cemil; Yarlıgan, S; Demirayak, Şeref (American Chemical Society, 2002)The acid dissociation constants, pK(a), of twelve biologically active 6-phenyl-4,5-dihydro-3(2H)-pyridazinone derivatives were determined using spectroscopic techniques. Elucidation of the structure-reactivity relationships ... -
Spectroscopic determination of acid dissociation constants of some pyridyl-substituted 2-aminothiazole derivatives
Öğretir, Cemil; Demirayak, Şeref; Tay, Naime Funda (American Chemical Society, 2006)The acid dissociation constants, K-a, of nine biologically active 2-amino-4-(x-pyridyl)- thiazole, 2-methylimino-3-methyl- 4-(x-pyridyl)- 2,3-dihydrothiazole, and 2-methylamino-4-(x-pyridyl)- 2,3-dihydrothiazole were ... -
Studies on non-steroidal inhibitors of aromatase enzyme; 4-(aryl/heteroaryl)-2-(pyrimidin-2-yl)thiazole derivatives
Şahin, Zafer; Ertaş, Merve; Berk, Barkın; Biltekin, Sevde Nur; Yurttaş, Leyla; Demirayak, Şeref (Pergamon-Elsevier Science LTD, 2018)Steroidal and non-steroidal aromatase inhibitors target the suppression of estrogen biosynthesis in the treatment of breast cancer. Researchers have increasingly focused on developing non-steroidal derivatives for their ... -
Synthesis and analgesic activities of some 2-(benzazolylacetyl)amino-3-ethoxycarbonylthiophene derivatives
Demirayak, Şeref; Karaburun, AC; Kayagil, İsmail; Uçucu, Ümit; Arslan, Rana (Taylor & Francis LTD, 2005)In this study, some 2-[2-(benzazole-2-thioxy)acetylamino]-3-ethoxycai-bonylthiophene and 2-[2-(benzazole-1-yl)acetylamino]-3-ethoxycarbonylthiophene compounds were obtained by the reaction of 2-chloroacetylamino-3-ethoxy ... -
Synthesis and anti-cancer activity evaluation of new aurone derivatives
Demirayak, Şeref; Yurttaş, Leyla; Gündoğdu-Karaburun, Nalan; Karaburun, Ahmet Çağrı; Kayagil, İsmail (Taylor & Francis LTD, 2015)In this study, we have synthesized 2-[3-or 4-(2-aryl-2-oxoethoxy) arylidene] benzofuran-3-one derivatives (D1-D38) and evaluated their anti-cancer activities. The final compounds were obtained in multistep synthesis reactions ... -
Synthesis and Anticancer Activities of Some Thiazole Derivatives
Kayagil, İsmail; Demirayak, Şeref (Taylor & Francis LTD, 2009)In this study, 2-substituted 4-[3/4-(4-arylthiazole-2-yl) aminophenyl] thiazole derivatives and 2-[4-[2-substituted 4-methylthiazole-5-yl]thiazole-2-yl] amino-5-arylidenethiazoline-4-one derivatives have been synthesized. ... -
Synthesis and anticancer activity of some 1,2,3-trisubstituted pyrazinobenzimidazole derivatives
Demirayak, Şeref; Yurttaş, Leyla (Taylor & Francis LTD, 2014)The synthesis of some new pyrazino[1,2-a]benzimidazole derivatives and investigation of their anticancer activities were aimed in this work. Thus, 2-acetylbenzimidazole was reacted with appropriate alpha-bromoacetophenones ... -
Synthesis and Anticancer Activity of Some 1H-inden-1-one Substituted (Heteroaryl)Acetamide Derivatives
Karaburun, Ahmet Çağrı; Gündoğdu-Karaburun, Nalan; Yurttaş, Leyla; Kayagil, İsmail; Demirayak, Şeref (Bentham Science Publ LTD, 2019)Background: The synthesis of 2-[3/4-((6-substituted-1-oxo-2,3-dihydro-1H-inden-2ylidene) methyl)phenoxy]-N-(heteroaryl)acetamide derivatives and the investigation of their anticancer activity were studied. Methods: ... -
Synthesis and Anticancer Activity of Some 2-[3/4-(2-Substituted Phenyl-2-oxoethoxy)benzylidene]-6-substituted-2,3-dihydro-1H-inden-1-one Derivatives
Gündoğdu-Karaburun, Nalan; Karaburun, Ahmet Çağrı; Demirayak, Şeref; Kayagil, İsmail; Yurttaş, Leyla (Bentham Science Publ LTD, 2014)The synthesis of 2-[3/ 4-(2-substituted phenyl-2-oxoethoxy) benzylidene]-6-substituted-2,3-dihydro-1H-inden-1one derivatives and the investigation of their anticancer activity were studied. 2-(3- or 4-Hydroxybenzylidene) ... -
Synthesis and antifungal activities of some aryl (3-methyl-benzofuran-2-yl) ketoximes
Benkli, Kadriye; Gündoğdu-Karaburun, N; Karaburun, Ahmet Çağrı; Uçucu, Ümit; Demirayak, Şeref; Kiraz, N (Pharmaceutical Society Korea, 2003)In this study, some aryl (3-methyl-benzofuran-2-yl) ketoximes and their. ethers and esters were synthesised. The structure elucidation of the compounds was performed by IR, H-1-NMR, MASS spectroscopy and elemental analyses. ...