Scopus İndeksli Yayınlar Koleksiyonu by Institution Author "Yurttaş, Leyla"
Now showing items 1-20 of 66
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Antimicrobial activity evaluation of new 1,3,4-oxadiazole derivatives
Yurttaş, Leyla; Bülbül, E. F.; TekinKoca, Sabiha; Demirayak, Şeref (University of Istanbul, 2017)In this study, we have synthesized seven novel 2-[(5-(4-chlorobenzyl)-1,3,4-oxadiazol-2-yl)thio]-N-(6-substituted benzothiazol-2-yl)acetamide derivatives (4ag) starting from ethyl 4-chlorophenyl acetate. The antimicrobial ... -
Antimicrobial and Cytotoxic Evaluation of New Quinazoline Derivatives
Turan, Gülhan; Yurttaş, Leyla; Saka, Güner; Cantürk, Zerrin; Karaca Gencer, Hülya; Baysal, Merve; Kaplancıklı, Zafer Asım (Natural Products Inc, 2016)The synthesis of nine new quinazoline derivatives (2a-21) and evaluation of their antimicrobial and cytotoxic activities were aims of the present work. For the synthesis of the compounds, 2-chloro-6,7-dimethoxyquinazolin-4-amine ... -
Antimicrobial evaluation of trisubstituted 2-piperazinyl thiazoles
Giray, B.; Yurttaş, Leyla; Şahin, Z.; Berk, B.; Demirayak, Şeref (İstanbul Medipol University, 2019)Thiazole and basic nitrogen containing rings are important chemical moieties of antimicrobial drugs. In recent, third generation cephalosporins include thiazole ring system. In this study, we synthesized 33 piperazine ... -
Biological Activity Evaluation of Novel 1,2,4-Triazine Derivatives Containing Thiazole/Benzothiazole Rings
Yurttaş, Leyla; Çiftçi, Gülsen Akalın; Temel, Halide Edip; Sağlık, Begüm Nurpelin; Demir, Bahar; Levent, Serkan (Bentham Science Publ LTD, 2017)Background: Triazine ring is a prominent structural motif found in some azanucleosides whose efficiency improved many times in the research area of antitumor agents. Objective: In this study, we have designed and synthesized ... -
Carbazoles and Hydrazone-Bridged Thiazole-Pyrrole Derivatives as New Inhibitors of alpha-Glucosidase
Ghani, Usman; Albarrag, Ahmed; Yurttaş, Leyla; Demirci, Fatih; Kaplancıklı, Zafer Asım (Wiley-V C H Verlag GMBH, 2018)Carbazoles and hydrazone-bridged thiazole-pyrrole derivatives are known to exhibit a wide range of biological activities including antimicrobial activity. This work is a further extension of their biological activities ... -
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 ... -
Design and Synthesis of New 1,3,4-Oxadiazole - Benzothiazole and Hydrazone Derivatives as Promising Chemotherapeutic Agents
Kaya, Betül; Hussin, Weiam; Yurttaş, Leyla; Turan, Gülhan; Karaca Gencer, Hülya; Baysal, Merve; Kaplancıklı, Zafer Asım (Georg Thieme Verlag Kg, 2017)Looking for new cytotoxic and antimicrobial agents with improved antitumor activity, a series of hydrazide and oxadiazole derivatives were designed and synthesized using 3-methoxyphenol as starting substance. Novel ... -
Design, synthesis and evaluation of new thiazole-piperazines as acetylcholinesterase inhibitors
Yurttaş, Leyla; Kaplancıklı, Zafer Asım; Özkay, Yusuf (Informa Healthcare, 2013)In this study, some new 2-(4-substituted piperazine-1-yl)-N-[4-(2-methylthiazol-4-yl)phenyl]acetamide derivatives were synthesized. The synthesized compounds were screened for their anticholinesterase activity on ... -
Erratum: Synthesis and Evaluation of Anti-acetylcholinesterase Activity of Some Benzothiazole Based New Piperazine-dithiocarbamate Derivatives (Drug Research (2015) DOI: 10.1055/s-0034-1375613)
Mohsen, U. A.; Kaplancıklı, Zafer Asım; Özkay, Yusuf; Yurttaş, Leyla (Georg Thieme Verlag, 2015)[No abstract available] -
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 ... -
New Cyclohexylamine-dithiocarbamate Derivatives as Potential Anti-microbial Agents
Yurttaş, Leyla; Kaya, Betül; Cankılıç, Meral Yılmaz; Levent, Serkan (Bentham Science Publ LTD, 2017)Background: In this study, 2-(substituted-sulfanyl)-N, N-dicyclohexylacetamide derivatives (2a-2g) and 2-(dicyclohexylamino)-2-oxoethyl-1-substituted carbodithioate derivatives (2h-2m) were synthesized and screened for ... -
New N'-Arylidene-2-[(4-Nitrophenyl) Piperazin-1-yl]Acetohydrazide Derivatives: Synthesis and Anticancer Activity Investigation
Yurttaş, Leyla; Kaplancıklı, Zafer Asım; Görgülü-Kahyaoğlu, Sennur (Bentham Science Publ LTD, 2017)Background: Compounds bearing ortho-hydroxy N-acyl hydrazone moiety have been reported with high anticancer activity acting by increasing the enzymatic activity of procaspase-3 in cancer cells and therefore inducing apoptosis ... -
New Procaspase Activating Compound (PAC-1) Like Molecules as Potent Antitumoral Agents Against Lung Cancer
Yurttaş, Leyla; Öztürk, Ömer; Cantürk, Zerrin (Bentham Science Publ LTD, 2019)Background: In this study, novel ortho-hydroxy N-acyl hydrazone moiety including compounds (3a-l) were designed, based on procaspase activating compound (PAC-1) which is a small molecule known with antitumor activity. The ... -
New Quinoline Based Sulfonamide Derivatives: Cytotoxic and Apoptotic Activity Evaluation Against Pancreatic Cancer Cells
Yurttaş, Leyla; Çiftçi, Gülsen Akalın (Bentham Science Publ LTD, 2018)Background: Quinoline is a privileged scaffold especially known with antimalarial and antibacterial drugs before, presently followed anticancer efficiency with a new group of protein kinase inhibitors. Objective: In this ... -
New Thiazoline-Tetralin Derivatives and Biological Activity Evaluation
Turan, Gülhan; Yurttaş, Leyla; Tabbi, Aouatef; Çiftçi, Gülsen Akalın; Temel, Halide Edip; Kaplancıklı, Zafer Asım (MDPI AG, 2018)In this study, novel N-(3-cyclohexyl/phenyl-4-(substituted phenyl)thiazole-2(3H)-ylidene)-2-[(5,6,7,8-tetrahydronaphthalen-2-yl)oxy]acetohydrazide (4a-4k) derivatives were synthesized and their anticancer potency were ... -
Novel 1-(2-pyrimidin-2-yl)piperazine derivatives as selective monoamine oxidase (MAO)-A inhibitors
Kaya, Betül; Yurttaş, Leyla; Sağlık, Begüm Nurpelin; Levent, Serkan; Özkay, Yusuf; Kaplancıklı, Zafer Asım (Taylor & Francis LTD, 2017)In the present study, a new series of 2-[4-(pyrimidin-2-yl) piperazin-1-yl]-2-oxoethyl 4-substituted piperazine- 1-carbodithioate derivatives (2a-n) were synthesized and screened for their monoamine oxidase A and B inhibitory ... -
Novel benzothiazole based imidazole derivatives as new cytotoxic agents against glioma (C6) and liver (HepG2) cancer cell lines
Yurttaş, Leyla; Ertaş, Merve; Çiftçi, Gülsen Akalın; Temel, Halide Edip; Demirayak, Şeref (University of Istanbul, 2017)In this work, some novel N-(6-substituted-benzothiazol-2-yl)-2-[[4,5-dimethyl-1-((p-tolyl/4-nitrophenyl)amino)-1H-imidazol-2-yl]thio]acetamide derivatives were synthesized and searched for their cytotoxic activities against ... -
Novel tetrazole derivatives: synthesis, anticholinesterase activity and cytotoxicity evaluation
Yurttaş, Leyla; Kaplancıklı, Zafer Asım; Temel, Halide Edip; Çiftçi, Gülsen Akalın (Walter De Gruyter GMBH, 2017)Objective(s): The synthesis of new N'-arylidene-4-[(1phenyl- 1H-tetrazole-5-yl) thio] butanoylhydrazide derivatives (1-26) and investigation of their potential anticholinesterase (AChE), butyrylcholinesterase (BuChE) enzyme ...