Kurum Yazarı "Ülker, Serdar" PubMed İndeksli Yayınlar Koleksiyonu İçin Listeleme
-
Cloning, purification and characterization of acetyl Xylane esterase from anoxybacillus flavithermus DSM 2641(T) with activity on low molecular-weight acetates
Eminoğlu, Ayşenur; Ülker, Serdar; Sandallı, Cemal (Springer, 2015)Family 4 carbohydrate esterases (CE-4) have deacetylate different forms of acetylated poly/oligosaccharides in nature. This family is recognized with a specific polysaccharide deacetylase domain assigned as NodB homology ... -
Design, synthesis, and biological evaluation of coumarin-triazole hybrid molecules as potential antitumor and pancreatic lipase agents
Kahveci, Bahittin; Yılmaz, Fatih; Menteşe, Emre; Ülker, Serdar (Wiley-V C H Verlag Gmbh, 2017)The design, synthesis, and investigation of antitumor and anti-lipase activities of some coumarin-triazole hybrid molecules are reported. the synthesis of these hybrid molecules was performed under microwave irradiation ... -
Microwave assisted synthesis and anti-lipase activity of some new fluorine-containing benzimidazoles
Menteşe, Emre; Yılmaz, Fatih; Ülker, Serdar; Kahveci, Bahittin (Georg Thieme Verlag Kg, 2015)In this study, a new series of fluorine containing benzimidazoles (4a-l) and bisbenzimidazoles (6a-c, 8) were synthesized by the reaction of o-phenylenediamines with iminoester hydrochlorides (3a-l, 7) in methanol under ... -
Microwave assisted synthesis of some hybrid molecules derived from norfloxacin and investigation of their biological activities
Menteşe, Meltem Yolal; Bayrak, Hacer; Uygun, Yıldız; Mermer, Arif; Ülker, Serdar; Karaoğlu, Şengül Alpay; Demirbaş, Neslihan (Elsevier France-Editions Scientifiques Medicales Elsevier, 2013)Norfloxacin was converted to 7-(4-amino-2-fluorophenyl)piperazin derivative (2) via the formation of nitro compound. the synthesis of the norfloxacin derivatives containing 1,3-thiazole or 1,3-thiazolidin moiety was performed ... -
Microwave-assisted synthesis and biological evaluation of some benzimidazole derivatives containing a 1,2,4-triazol ring
Menteşe, Emre; Karaali, Nesrin; Yılmaz, Fatih; Ülker, Serdar; Kahveci, Bahittin (Wiley-V C H Verlag Gmbh, 2013)A new series of 2-(4-(trifluoromethyl)phenyl)-1H-benzo[d]imidazole derivatives containing a 1,2,4-triazole ring were synthesized via microwave technique. This efficient procedure provides pure products within a few minutes. ... -
Molecular docking studies and synthesis of novel bisbenzimidazole derivatives as inhibitors of alpha-glucosidase
Özil, Musa; Emirik, Mustafa; Beldüz, Ali; Ülker, Serdar (Pergamon-Elsevier Science Ltd, 2016)A series of bisbenzimidazole derivatives starting from o-phenylenediamine and 4-nitro-o-phenylenediamine were prepared with oxalic acid. Most of the reactions were conducted using both the microwave and conventional methods ... -
New lipase assay using Pomegranate oil coating in microtiter plates
Ülker, Serdar; Placidi, Camille; Point, Vanessa; Gadenne, Benoit; Serveau-Avesque, Carole; Canaan, Stephane; Corriere, Frederic; Cavalier, Jean-Francois (Elsevier France-Editions Scientifiques Medicales Elsevier, 2016)Lipases play various roles in fat digestion, lipoprotein metabolism, and in the mobilization of fat stored in lipid bodies in animals, plants and microorganisms. in association with these physiological functions, there is ... -
Purification and characterization of an extracellular lipase from Mucor hiemalis f. corticola isolated from soil
Ülker, Serdar; Karaoğlu, Şengül Alpay (Elsevier, 2012)We have screened 39 microfungi isolates originated from soil in terms of lipolytic activity. Out of all screened, a novel strain of Mucor hiemalis f. corticola was determined to have the highest lipase activity. The ... -
A simple and efficient synthesis of novel inhibitors of alpha-glucosidase based on benzimidazole skeleton and molecular docking studies
Özil, Musa; Emirik, Mustafa; Etlik, Semiha Yılmaz; Ülker, Serdar; Kahveci, Bahittin (Academic Press Inc Elsevier Science, 2016)A novel series of benzimidazole derivatives were prepared starting from o-phenylenediamine and 4-nitro-o-phenylenediamine with iminoester hydrochlorides. Acidic proton in benzimidazole was exchanged with ethyl bromoacetate, ... -
Syntheses and biological activities of new hybrid molecules containing different heterocyclic moieties
Ceylan, Şule; Bektaş, Hakan; Bayrak, Hacer; Demirbaş, Neslihan; Karaoğlu, Şengül Alpay; Ülker, Serdar (Wiley, 2013)4-Aryl-5-(pyridin-3-yl)-4H-1,2,4-triazole-3-(thi)oles 5-7, obtained starting from nicotinic acid hydrazide were converted to the corresponding Mannich bases 12-24 by the reaction with several heterocyclic amines in the ... -
Synthesis of some heterofunctionalized penicillanic acid derivatives and investigation of their biological activities
Demirci, Serpil; Demirbaş, Ahmet; Ülker, Serdar; Alpay-Karaoğlu, Şengül; Demirbaş, Neslihan (Wiley-V C H Verlag Gmbh, 2014)6-Substituted amino-penicillanic acid esters were synthesized starting with 6-apa. the compounds containing a 1,3-thiazole- or 1,3-thiazolidinone nucleus linked to the penicillanic acid skeleton via a hydrazino linkage ... -
Synthesis of some new 1,2,4-triazole derivatives starting from 3-(4-chlorophenyl)-5-(4-methoxybenzyl)-4H-1,2,4-triazol with anti-lipase and anti-urease activities
Bekircan, Olcay; Menteşe, Emre; Ülker, Serdar; Küçük, Çağatay (Wiley-V C H Verlag Gmbh, 2014)In the present study, starting compound 4 was prepared by deamination of compound 2 in the presence of hypophosphorous acid and sodium nitrite. Treatment of compound 4 with ethyl bromoacetate produced ethyl[3-(4-chloroph ... -
Synthesis of some novel heterocylic compounds derived from 2-[3-(4-chlorophenyl)-5-(4-methoxybenzyl)-4H-1,2,4-triazol-4-yl]acetohydrazide and investigation of their lipase and alpha-glucosidase inhibition
Bekircan, Olcay; Ülker, Serdar; Menteşe, Emre (Taylor & Francis Ltd, 2015)In the present study, 2-[3-(4-chlorophenyl)-5-(4-methoxybenzyl)-4H-1,2,4-triazol-4-yl]acetohydrazide (1) was used as starting compound for the synthesis of 2-{[3-(4-chlorophenyl)-5-(4-methoxybenzyl)-4H-1,2,4-triazol-4-yl ... -
Synthesis, molecular docking and biological evaluation of some benzimidazole derivatives as potent pancreatic lipase inhibitors
Menteşe, Emre; Yılmaz, Fatih; Emirik, Mustafa; Ülker, Serdar; Kahveci, Bahittin (Academic Press Inc Elsevier Science, 2018)In this study, a new series of benzimidazole and bisbenzimidazole derivatives were prepared via the reaction of iminoester hydrochlorides and o-phenylenediamines and then screened for their lipase inhibition properties. ...