背景技术对现有抗微生物剂的致病性耐药性的惊人增加是一个严重的问题,并且这些细菌感染的治疗正变得越来越具有挑战性。因此,迫切需要开发新型抗微生物剂。目的作为我们正在进行的新型抗菌剂研究的一部分,一系列(Z)-5-((3-苯基-1H-吡唑-4-基)亚甲基)-2-的合成和抗菌活性在这项研究中将讨论噻吩并噻唑烷-4-酮衍生物。方法设计,合成(Z)-5-((3-苯基-1H-吡唑-4-基)亚甲基)-2-硫代噻唑烷酮-4-一衍生物,并评价其抗菌活性。通过IR,1 H NMR,13 C NMR和质谱确认结构。使用96孔微量滴定板和系列稀释方法在体外评估所有合成的化合物,以获得对多种不同菌株(包括耐多药临床分离株)的最低抑菌浓度(MIC)值。结果体外抗菌测试表明,系列7和9中的大多数化合物对厌氧菌(变形链球菌)菌株均表现出显着的抑制活性,MIC值为1 µg / mL。化合物7c和9c对MRSA的活性最高(3
Synthesis of 3-Substituted Arylpyrazole-4-carboxylic Acids
作者:A. V. Lebedev、A. B. Lebedeva、V. D. Sheludyakov、E. A. Kovaleva、O. L. Ustinova、I. B. Kozhevnikov
DOI:10.1007/s11176-005-0318-7
日期:2005.5
3-aryl-substituted pyrazole-4-carboxylic acids, involving Vilsmeier formylation of semicarbazones of 26 available mono- and disubstituted acetophenones and 2-acetylthiophene followed by oxidation of the resulting 3-aryl-substituted pyrazole-4-carboxaldehydes under the action of potassium permanganate. The mechanism of the formylation reaction is discussed. The method successfully works even with acetophenones
Synthesis and 1H nuclear magnetic resonance spectra of some aryl-1,2,3-selenadiazoles
作者:Alon Caplin
DOI:10.1039/p19740000030
日期:——
A series of aryl-1,2,3-selenadiazoles has been prepared, and their n.m.r. spectral parameters are recorded. The ranges of chemical shifts of the 5-proton due to meta- or para-substitution in the 4-aryl substituent are similar to those for the corresponding protons in the side-chains of substituted benzenes.
Spectroscopic Characterization and Biological Potential of Palladium(II) Complexes of Benzylidenehydrazinecarboxamide or -carbothioamide
作者:Nighat Fahmi、Chitra Saxena、Ranvir V. Singh
DOI:10.1246/bcsj.69.963
日期:1996.4
the synthesis, stereochemistry, and biochemical behavior of palladium(II) complexes of benzylidenehydrazinecarboxamide or -carbothioamide is presented. The bimolar addition and substitution products have been characterized by elemental analyses, conductance measurements, molecular-weight determinations, magnetic susceptibilities, and spectral studies viz., IR, 1H NMR, 19F NMR, and UV. The data support
在本文中,简要介绍了苄叉肼甲酰胺或 -碳硫酰胺的钯 (II) 配合物的合成、立体化学和生化行为。双摩尔加成和取代产物已通过元素分析、电导测量、分子量测定、磁化率和光谱研究(即 IR、1H NMR、19F NMR 和 UV)进行表征。数据支持硫或氧和氮与钯的结合(X 是 O 或 S)类型的配合物。已经提出了方形平面几何。代表性的游离配体 () 及其各自的金属配合物在体外针对多种微生物进行了测试,以评估它们的抗菌性能,并在体内测试了它们的杀菌潜力。结果确实是积极的。
Structure–activity relationship study of a novel necroptosis inhibitor, necrostatin-7
Necroptosis is a regulated caspase-independent cell death mechanism characterized by morphological features resembling non-regulated necrosis. Necrotatin-7 (Nec-7), a novel potent small-molecule inhibitor of necroptosis, is structurally distinct from previously described necrostatins (Nec-1, Nec-3, Nec-4 and Nec-5). Here, we describe a series of structural modi. cations and the structure-activity relationship (SAR) of the Nec-7 series for inhibiting necroptosis. (C) 2008 Elsevier Ltd. All rights reserved.
Saxena, Chitra; Singh, R. V., Phosphorus, Sulfur and Silicon and the Related Elements, 1994, vol. 97, # 1-4, p. 17 - 26