作者通过几种有机方法描述了两种不同的五元杂环衍生物(噻唑和噻二唑)的合成和表征。这些化合物通过FTIR,1 H NMR和元素分析进行表征。而且,作者试图通过失重技术研究这些衍生物对硝酸介质中铜腐蚀的抑制作用。讨论了影响这些衍生物抑制效率的温度因子。而且,抑制效率取决于分子上变化的取代基。从结果发现,噻二唑抑制剂比噻唑抑制剂具有更高的抑制效率。
regeneration presents a potential strategy for MetS treatment. Recently we disclosed the total synthesis of (+)-colletoic acid as a potent 11β-HSD1 inhibitor. Herein, we describe our improved processing chemistry for the synthesis of the colletoic acid core to access a diverse number of derivatives for evaluation against 11β-HSD1. The Evan's chiral auxiliary was utilized to construct the acyclic precursor
Study of Zn(II)- Salicylidene–4-(p–chlorophenyl)–2–Aminothiazole Complex by Polarographic Method with its Antibacterial Activity
作者:Manohar Solanki、Mangla Dave Gautam、Vijay R. Chourey
DOI:10.13005/ojc/380522
日期:2022.10.31
in DMF media by the polarographicmethod and produce a DC and DPP polarogram in KCl (supporting electrolyte) with Britton- Robinson buffer. The far FT- IR spectral study show signals at 465 and 412 cm−1 respectively which confirm the metal-ligand bonding. The serial tube dilution method (MIC) was used for investigating the antibacterial activity of this newly synthesized complex and ligand toward pathogenic
Synthesis and serotonergic activity of variously substituted (3-amido)phenylpiperazine derivatives and benzothiophene-4-piperazine derivatives: novel antagonists for the vascular 5-HT1B receptor
作者:Gerard P. Moloney、Agatha Garavelas、Graeme R. Martin、Miles Maxwell、Robert C. Glen
DOI:10.1016/j.ejmech.2003.12.008
日期:2004.4
The synthesis and vascular 5-HT1B receptor activity of a novel series of substituted 3-amido phenylpiperazine and 4-(4-methyl-1-piperazinyl)-1-benzo[b]thiophene derivatives is described. Modifications to the amido linked sidechains of the 3-amidophenyl-piperazine derivatives and to the 2-sidechain of the 1-benzo[b]thiophene derivatives have been explored. Several compounds were identified which exhibited affinity at the vascular 5-HT1B receptor of pK(B) > 7.0. From the 3-aminophenyl-piperazine series, N-(4-(4-chlorophenyl)thiazol-2-yl-3-(4-methyl-1-piperazinyl)benzamide (30) and from the benzo[b]thiophene-4-piperazine series N-(2-ethylphenyl)-4-(4-methyl-1-piperazinyl)-1-benzo[b]thiophene-2-carboxamide (38) were identified as a highly potent, silent (as judged by the inability of angiotensin II to unmask 5-HT1B receptor mediated agonist activity in the rabbit femoral artery) and competitive vascular 5-HT1B receptor antagonist. The affinity of compounds from these two series of compounds for the vascular 5-HT1B receptor is discussed as well as a proposed mode of binding to the receptor pharmacophore. (C) 2004 Elsevier SAS. All rights reserved.
4-(Heteroarylaminomethyl)-N-(2-aminophenyl)-benzamides and their analogs as a novel class of histone deacetylase inhibitors
The synthesis and biological evaluation of a variety of 4-(heteroarylaminomethyl)-N-(2-aminophenyl)-benzamides and their analogs is described. Some of these compounds were shown to inhibit HDAC1 with IC50 values below the micromolar range, induce hyperacetylation of histones, upregulate expression of the tumor suppressor p21(WAF1/Cip1), and inhibit proliferation of human cancer cells. In addition, certain compounds of this class were active in several human tumor xenograft models in vivo. (c) 2008 Elsevier Ltd. All rights reserved.
Microwave assisted synthesis of isothiazolo-, thiazolo-, imidazo-, and pyrimido-pyrimidinones as novel MCH1R antagonists
作者:Tao Guo、Rachael C. Hunter、Rui Zhang、William J. Greenlee
DOI:10.1016/j.tetlet.2006.11.120
日期:2007.1
An efficient microwave assisted condensation of alpha-heteroarylamines with 3-dimethylamino-2-aryl-propenoates has been developed to synthesize various fused bi-heterocyclic compounds, including isothiazolo-, thiazolo-, imidazo-, and pyrimido-pyrimidinones as novel MCH1R antagonists. (c) 2006 Elsevier Ltd. All rights reserved.