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dc.contributor.authorNilufer, Bulut
dc.contributor.authorUmit M., Kocyigit
dc.contributor.authorIbrahim H., Gecibesler
dc.contributor.authorTaner, Dastan
dc.contributor.authorHuseyin, Karci
dc.contributor.authorTaslimi, Parham
dc.contributor.authorSevgi Durna, Dastan
dc.contributor.authorIlhami, Gulcin
dc.contributor.authorAhmet, Cetin
dc.date.accessioned2019-05-07T13:13:55Z
dc.date.available2019-05-07T13:13:55Z
dc.date.issued2018-01
dc.identifier.urihttp://hdl.handle.net/11772/1174
dc.description.abstractSome novel derivatives of thiosemicarbazide and 1,2,4-triazole-3-thiol were synthesized and evaluated for their biological activities. The title compounds were prepared starting from readily available pyridine-2,5-dicarboxylic acid. The reaction carboxylic acid with absolute ethanol afforded the corresponding dimethyl pyridine-2,5-dicarboxylate (1). The reaction of dimethyl-2,5-pyridinedicarboxylate (1) with hydrazine hydrate good yielded pyridine-2,5-dicarbohydrazide (2). Refluxing compound 2 with alkyl/aryl isothiocyanate derivatives for 3-8 h afforded 1,4-disubstituted thiosemicarbazides (3a-e). Base-catalyzed intra-molecular dehydrative cyclization of these intermediates furnished the 4,5-disubstituted bis-mercaptotriazoles (4a-e) in good yield (85%-95%). Among the target compounds, 2,2'-(pyridine-2,5-diyldicarbonyl)bis[N-(p-methoxyphenyl)hydrazinecarbothioamide] (3c) showed very high activity with value of 72.93% against 1,1-diphenyl-2-picrylhydrazyl free radical at the concentration of 25 mu g/mL. The inhibitory effects of the target compounds against acetylcholinesterase (AChE), hCA I, and II were studied. AChE, cytosolic hCA I and II isoforms were potently inhibited by synthesized these derivatives with K(i)s in the range of 3.07 +/- 0.76-87.26 +/- 29.25 nM against AChE, in the range of 1.47 +/- 0.37-10.06 +/- 2.96 nM against hCA I, and in the range of 3.55 +/- 0.57-7.66 +/- 2.06 nM against hCA II, respectively.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.isversionof10.1002/jbt.22006en_US
dc.rightsinfo:eu-repo/semantics/restrictedAccessen_US
dc.subject1,2,4-triazolesen_US
dc.subjectAntioxidant activityen_US
dc.subjectCarbonic anhydraseen_US
dc.subjectEnzyme inhibitionen_US
dc.subjectPyridineen_US
dc.titleSynthesis of some novel pyridine compounds containing bis-1,2,4-triazole/thiosemicarbazide moiety and investigation of their antioxidant properties, carbonic anhydrase, and acetylcholinesterase enzymes inhibition profilesen_US
dc.typearticleen_US
dc.relation.journalJournal of Biochemical and Molecular Toxicologyen_US
dc.contributor.departmentBartın Üniversitesi, Fen Fakültesi, Biyoteknoloji Bölümüen_US
dc.identifier.volume32en_US
dc.identifier.issue1en_US
dc.identifier.startpagee22006en_US


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