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。
A Facile Method for the Synthesis of Hydrazine-4-oxothiazolidine and Imino-5-oxothiadiazine Derivatives from 1,4-Disubstituted Thiosemicarbazides
作者:Alaa A. Hassan、Ashraf A. Aly、Tarek I. M. Bedair、Alan B. Brown、Talaat I. El-Emary
DOI:10.1002/jhet.1655
日期:2014.1
1,4‐Disubstituted thiosemicarbazides reacted with dimethyl acetylenedicarboxylate with formation of (2‐hydrazono‐4‐oxothiazolidin‐5‐ylidene)acetates and, in one case, a (2‐imino‐1,3,4‐thiadiazin‐5‐on‐6‐ylidene)acetate. Several mechanistic options involving nucleophilic interaction are presented. The structures of all newly synthesized compounds were identified by 1H NMR, 13C NMR, COSY, HMQC and HMBC
1,4-二取代的硫代氨基脲与乙炔二甲酸二甲酯反应生成(2-肼基-4-氧杂噻唑啉-5-吡咯)乙酸酯,在一种情况下还生成(2-亚氨基-1,3,4-噻二嗪-5-酮) -6-亚丙基)乙酸酯。介绍了涉及亲核相互作用的几种机理选择。通过1 H NMR,13 C NMR,COSY,HMQC和HMBC光谱数据鉴定所有新合成的化合物的结构。
In silico
design, synthesis and antitubercular activity of novel 2-acylhydrazono-5-arylmethylene-4-thiazolidinones as enoyl-acyl carrier protein reductase inhibitors
Mycobacteria regulate the synthesis of mycolic acid through the fatty acid synthase system type 1 (FAS I) and the fatty acid synthase system type-2 (FAS-II). Because mammalian cells exclusively uti...
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.
Chemotherapy of Experimental Tuberculosis. X. Heterocyclic Acyl Derivatives of Substituted Semicarbazides<sup>1</sup>
作者:Harry L. Yale、Kathryn A. Losee、Frances M. Perry、Jack Bernstein
DOI:10.1021/ja01637a054
日期:1954.4
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.