从2-芳基-4-甲基噻唑-5-碳酰肼和异烟酸酰肼开始合成了一系列新的1,3,4-恶二唑/噻二唑和1,2,4-三唑衍生物。通过IR,1 H NMR,13 C NMR和质谱对所有新合成的化合物进行表征。筛选合成的化合物的抗菌和抗真菌活性,评估为生长抑制直径。它们中的一些对革兰氏阳性金黄色葡萄球菌显示出良好的抗菌活性,而对单核细胞增生性李斯特菌,大肠杆菌和鼠伤寒沙门氏菌的抗菌活性以及对白色念珠菌的抗真菌活性。很谦虚。所测试的化合物均未显示出对革兰氏阳性菌粪便肠球菌和蜡状芽孢杆菌以及对革兰氏阴性菌铜绿假单胞菌的抑制活性。
5-(4-Pyridinyl)-4-substituted-2,4-dihydro-3H-1,2,4-triazole-3-thiones and 5-(4-pyridinyl)-4-substituted-3-(benzoylmethyl)thio 4H-1,2,4-triazoles were synthesized. The structures of original nine compounds were confirmed by IR, H-1 NMR, mass spectral methods and elemental analysis. The antibacterial, antifungal and antimycobacterial activities, together with those of known intermediate 1,4-disubstituted thiosemicarbazides, were reported. (C) 2001 Elsevier Science S.A. All rights reserved.
Narrow SAR in odorant sensing Orco receptor agonists
作者:Ian M. Romaine、Robert W. Taylor、Samsudeen P. Saidu、Kwangho Kim、Gary A. Sulikowski、Laurence J. Zwiebel、Alex G. Waterson
DOI:10.1016/j.bmcl.2014.04.081
日期:2014.6
The systematic exploration of a series of triazole-based agonists of the cation channel insect odorant receptor is reported. The structure-activity relationships of independent sections of the molecules are examined. Very small changes to the compound structure were found to exert a large impact on compound activity. Optimal substitutions were combined using a 'mix-and-match' strategy to produce best-in-class compounds that are capable of potently agonizing odorant receptor activity and may form the basis for the identification of a new mode of insect behavior modification. (C) 2014 Elsevier Ltd. All rights reserved.
Asymmetric synthesis of new β-heterocyclic (S)-α-aminopropionic acids
作者:Ashot S. Saghyan、Hayarpi M. Simonyan、Lala A. Stepanyan、Samvel G. Ghazaryan、Arpine V. Geolchanyan、Luiza L. Manasyan、Vahe T. Ghochikyan、Tariel V. Ghochikyan、Nelli A. Hovhannisyan、Ashot Gevorgyan、Viktor O. Iaroshenko、Peter Langer
DOI:10.1016/j.tetasy.2012.05.022
日期:2012.6
The asymmetric synthesis of novel non-proteinogenic beta-heterocyclic alpha-amino acids via the diastereoselective conjugate addition of heterocyclic nucleophiles to the dehydroalanine moiety of chiral Ni(II) complexes has been studied. The complexes were formed from the Schiff base of dehydroalanine using (S)-2-N-(N-benzylprolyl)aminobenzophenone as a chiral auxiliary. After decomposition of the complexes, the a-amino acids were isolated with 30-99% ee. (c) 2012 Published by Elsevier Ltd.
Synthesis and Intramolecular Heterocyclization of Selected Isonicotinic Acid Thiocarbazides
作者:O. A. Nurkenov、G. Zh. Karipova、T. M. Seilkhanov、Zh. B. Satpaeva、S. D. Fazylov、A. Nukhuly
DOI:10.1134/s1070363219090299
日期:2019.9
The reaction of isonicotinic acid hydrazide with ethyl-, allyl-, and cinnamoyl isothiocyanates has afforded the corresponding alkylthiosemicarbazides and the products of their intramolecular heterocyclization, 1,2,4-triazoles.