Discovery and Characterization of 1H-Pyrazol-5-yl-2-phenylacetamides as Novel, Non-Urea-Containing GIRK1/2 Potassium Channel Activators
摘要:
The G protein-gated inwardly-rectifying potassium channels (GIRK, KO) are a family of inward-rectifying potassium channels, and there is significant evidence supporting the roles of GIRKs in a number of physiological processes and as potential targets for numerous indications. Previously reported urea containing molecules as GIRK1/2 preferring activators have had significant pharmacokinetic (PK) liabilities. Here we report a novel series of 1H-pyrazolo-5yl-2-phenylacetamides in an effort to improve upon the PK properties. This series of compounds display nanomolar potency as GIRK1/2 activators with improved brain distribution (rodent K-p > 0.6).
Pyrimido[5,4-e][1,2,4]triazine-5,7(1H,6H)-dione derivatives as novel small molecule chaperone amplifiers
作者:Yuefen Zhou、Linyi Wei、Thomas P. Brady、P.S. Murali Mohan Redddy、Tram Nguyen、Jinhua Chen、Qingyan Au、Il Sang Yoon、Gary Yip、Bin Zhang、Jack R. Barber、Shi Chung Ng
DOI:10.1016/j.bmcl.2009.05.073
日期:2009.8
Pyrimido[5,4-e][1,2,4]triazine-5,7(1H,6H)-dione derivatives were investigated as novel small molecule amplifiers of heat shock factor 1 transcriptional activity. Lead optimization led to the discovery of compound 4A-13, which displayed potent HSF1 activity under mild heat stress (EC50 = 2.5 μM) and significant cytoprotection in both rotenone (EC50 = 0.23 μM) and oxygen-glucose deprivation cell toxicity
N-Substituierte 2-Hydrazono-Propionsäure-Derivate, Verfahren zur Herstellung derselben und Arzneimittel, die diese enthalten
申请人:BOEHRINGER MANNHEIM GMBH
公开号:EP0001144A1
公开(公告)日:1979-03-21
2-Hydrazono - propionsäure - Derivate der allgemeinen Formel I
Verfahren zu ihrer Herstellung durch Umsetzung von entsprechenden Hydrazinen mit einem Propionsäure Derivat mit 'blutzuckersenkender Wirkung sowie Arzneimittel, ihre Verwendung zur Herstellung von Arzneimitteln, die neben üblichen Trägerstoffen einen Wirkstoff der Formel I enthalten.
通式 I 的 2-肼基丙酸衍生物 通过相应的肼与具有降血糖作用的丙酸衍生物反应制备 2-肼基丙酸衍生物的工艺,以及它们在制备除常规辅料外还含有式 I 活性化合物的药物中的用途。
Rapid, microwave-assisted synthesis of N1-substituted 3-amino-1,2,4-triazoles
作者:Jerry Meng、Pei-Pei Kung
DOI:10.1016/j.tetlet.2008.12.042
日期:2009.4
A robust, regioselective synthesis of 3-amino-1,2,4-triazoles is described. This reaction employs a key intermediate 2, which is coupled to carboxylic acids in good yields to afford intermediates 3a-d. These entities, in turn, react with a variety of hydrazines or hydrazine hydrochlorides to provide proposed intermediates 4a-j, which under microwave conditions cyclize to the desired 3-amino-1,2,4-triazoles (compounds 5a-j). This approach permits the rapid synthesis of regioselective NI-substituted 3-amino-1,2,4-triazoles, and is shown to afford a variety of such compounds in 34-70% isolated yields. (C) 2009 Elsevier Ltd. All rights reserved.