3 research outputs found

    In vitro antioxidant and antimicrobial activities of some novel 3-Alkyl4-[3-methoxy-4-(p-nitrobenzoxy)-benzylideneamino]-4,5-dihydro-1H1,2,4-triazol-5-ones

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    Bu çalışmada, dokuz yeni 3-alkil-4-[3-metoksi-4-(p-nitrobenzoksi)-benzilidenamino]-4,5-dihidro-1H1,2,4-triazol-5-on (3) bileşiği 3-alkil-4-amino-4,5-dihidro-1H-1,2,4-triazol-5-on (1) bileşiklerinin 3- metoksi-4-hidroksibenzaldehidin trietilaminli ortamda p-nitrobenzoil klorür ile reaksiyonundan elde edilen 3-metoksi-4-(p-nitrobenzoksi)-benzaldehid (2) ile reaksiyonundan sentezlenmiştir. Sentezlenen yeni bileşikler IR, 1H NMR ve 13C NMR spektrum verileri kullanılarak karakterize edilmiştir. Çalışmada, ayrıca, yeni bileşiklerin in vitro antibakteriyal etkinlikleri altı bakteriye karşı agar kuyucuk yöntemi ile belirlenmiştir. İn vitro ortamda sentezlenen yeni bileşiklerin antioksidan aktiviteleri üç farklı yöntemle tayin edilmiştir.In this study, nine novel 3-alkyl-4-[3-methoxy-4-(p-nitrobenzoxy)-benzylideneamino]-4,5-dihydro-1H1,2,4-triazol-5-ones (3) were synthesized from the reactions of 3-alkyl-4-amino-4,5-dihydro-1H-1,2,4- triazol-5-ones (1) with 3-methoxy-4-(p-nitrobenzoxy)-benzaldehyde (2), which was synthesized by the reaction of 3-methoxy-4-hydroxybenzaldehyde with p-nitrobenzoyl chloride by using triethylamine. The structures of novel compounds were established from IR, 1H NMR and 13C NMR spectral data. In addition, in vitro antibacterial capacities of the new compounds were determined against six bacteria by mains of agar well diffusion method. Furthermore, newly synthesized compounds antioxidant capacities were performed by three different methods

    Modifiye edilmiş camsı karbon ile yeni bir Cu(II) analiz yöntemi

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    Bakır (Cu (II)) çok düşük seviyelerde birçok bitki ve hayvan için gerekli ve gerekli bir mikro besleyicidir. Bununla birlikte, hücre zarları ile birleşmesi nedeniyle su bitkileri için yüksek seviyelerde toksiktir. Camsı karbon elektrot (GCE), 3-fenil-4-[2-(2-naftilsülfoniloksi)-benzilamino]-4,5-dihidro-1H-1,2,4-triazol-5-on (3-PNO) ile 0,1 M destek elektrot içinde modifiye edildi. Modifiye edilmiş yüzey dönüşümlü voltametri (CV) ve X-ışınları fotoelektron spektroskopisi ile karakterize edildi. Karakterizasyon sonuçlarına göre modifiye elektrot başarılı bir şekilde elde edildi. 3-PNO ile modifye edilmiş GCE, Cu(II) iyonunun su numunesinin içinde analizi için kullanıldı. Konsantrasyon aralığı ve deteksiyon limiti sırasıyla 1.0×10-10 - 2.0×10-8 M ve 2.0×10-11 M (S/N = 3), olarak bulundu

    Synthesis and acetylcholinesterase enzyme inhibitory effects of some novel 4,5-Dihydro-1H-1,2,4-triazol-5-one derivatives; an in vitro and in silico study

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    In this study, a series of novel Schiff bases (4a-4h) containing 1,2,4-triazole structure were synthesized through a condensation reaction of 3-alkyl(aryl)-4-amino-4,5-dihydro-1H-1,2,4-triazol-5-ones with 3-(4-methylbenzenesulfonyloxy)-benzaldehyde. The structures of 3-alkyl(aryl)-4-[3-(4-methylsulfonyloxy)-benzylidenamino]-4,5-dihydro-1H-1,2,4-triazol-5-ones (4a-h) were determined through a range of spectroscopic techniques (FT-IR, H-1 NMR, C-13 NMR, and elemental analysis). In addition, enzyme inhibitory properties of the newly synthesized Schiff bases were determined against acetylcholinesterase (AChE). Their K-i values were calculated in the range of 0.70 +/- 0.07-8.65 +/- 5.6 mu M. Besides, their IC50 values were calculated in the range of 0.43-3.87 mu M. Finally, in silico molecular docking interactions of the compounds with AChE target enzyme (PDB ID:4EY7) were evaluated using Chimera and AutoDock Vina softwares. The lowest binding energy levels (-12.0 kcal/mol) of the compounds 4e and 4g with AChE target enzyme were verified the best binding affinities and molecular interactions. Communicated by Ramaswamy H. SarmaResearch Foundation of Kafkas University [2018-FM-18]The authors are grateful to the Research Foundation of Kafkas University for financial support under project 2018-FM-18
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