4,5-Diphenyltriazol-3-ones: Openers of Large-Conductance Ca2+-Activated Potassium (Maxi-K) Channels
摘要:
A series of diphenyl-substituted heterocycles were synthesized and evaluated by electrophysiological techniques as openers of the cloned mammalian large-conductance, Call-activated potassium (maxi-K) channel. The series was designed from deannulation of known benzimidazolone maxi-K opener NS-004 (2) thereby providing an effective template for obtaining structure-activity-related information. The triazolone ring system was the most studied wherein 4,5-diphenyltriazol-3-one 6d (maxi-K = 158%) was identified as the optimal maxi-K channel opener.
Aminolysis of Esters or Lactones Promoted by NaHMDS - A General and Efficient Method for the Preparation of N-Aryl Amides
作者:Jianji Wang、Miguel Rosingana、Robert P. Discordia、Nachimuthu Soundararajan、Richard Polniaszek
DOI:10.1055/s-2001-16798
日期:——
An efficient method for the preparation of N-aryl amides from anilines, esters or lactones promoted by NaHMDS is described. Advantages of this new method include high yields and mild reaction conditions which tolerate functional groups such as ketones and halides.
[EN] AMIDE COMPOUND, AND PREPARATION METHOD THEREFOR AND PHARMACEUTICAL USE THEREOF<br/>[FR] COMPOSÉ AMIDE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION PHARMACEUTIQUE<br/>[ZH] 一种酰胺类化合物、其制备方法和制药用途
申请人:[en]SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES;[zh]中国科学院上海药物研究所
A new series of N-(3/4-substituted phenyl) 4/5-chloro-2-methoxybenzamides and their thioxo analogues have been synthesised and evaluated for in vitro antimycobacterial activity against Mycobacterium tuberculosis H37Rv, as well as the two atypical strains Mycobacterium kansasii and Mycobacterium avium. Five of the most active compounds were evaluated for cytotoxicity and their ability to inhibit mycobacterial isocitrate lyase, which is responsible for latent survival of Mycobacterium. The results showed that benzthioanilides were more active than the corresponding benzanilides. The most active compound, 4-chloro-2-methoxy-N-(3,4-dichlorophenyl)benzothioamide (4e), had a minimal inhibition concentration (MIC) against M. tuberculosis of 2 mu mol L-1, which was better than the activity of the previously published corresponding salicylanilide. (C) 2012 Elsevier Masson SAS. All rights reserved.
DIPHENYL HETEROCYCLES AS POTASSIUM CHANNEL MODULATORS