Propionic Acid Derivatives and Methods of Use Thereof
申请人:Biediger Ronald J.
公开号:US20180312523A1
公开(公告)日:2018-11-01
Provided herein are compounds and pharmaceutical compositions of formula I
where R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as described herein. Also provided pharmaceutically acceptable salts or stereoisomers of these compounds. In addition methods are provided for inhibiting the binding of an integrin to treat various pathophysiological conditions.
Protein-tyrosine phosphatase inhibitors and uses thereof
申请人:——
公开号:US20040214870A1
公开(公告)日:2004-10-28
The present invention is directed to compounds of formula (I),
1
or a pharmaceutically suitable salt or prodrug thereof, which are useful for the selective inhibition of protein tyrosine phosphatase-1B (PTP1B), and are useful for the treatment of disorders caused by overexpressed or altered protein tyrosine phosphatase 1B.
Modular Cyclopentenone Synthesis through the Catalytic Molecular Shuffling of Unsaturated Acid Chlorides and Alkynes
作者:Yong Ho Lee、Elliott H. Denton、Bill Morandi
DOI:10.1021/jacs.0c10832
日期:2020.12.16
general strategy for the intermolecular synthesis of polysubstituted cyclopentenones using palladium catalysis. Overall, this reaction is achieved via a molecular shuffling process involving an alkyne, an α,β-unsaturated acid chloride, which serves as both the alkene and carbon monoxide source, and a hydrosilane to create three new C-C bonds. This newcarbon monoxide-free pathway delivers the products
我们描述了使用钯催化分子间合成多取代环戊烯酮的一般策略。总体而言,该反应是通过涉及炔烃、α,β-不饱和酰氯(作为烯烃和一氧化碳来源)和氢硅烷的分子改组过程实现的,以产生三个新的 CC 键。这种新的无一氧化碳途径提供了具有优异产量的产品。此外,区域选择性是对环戊烯酮合成常规方法的补充。此外,还提出了一组区域和化学发散反应,以强调这种新策略的合成潜力。
Copper and l-(−)-quebrachitol catalyzed hydroxylation and amination of aryl halides under air
l-(−)-Quebrachitol, a natural product obtained from waste water of the rubber industry, was utilized as an efficientligand for the copper-catalyzedhydroxylation and amination of arylhalides to selectively give phenols and aryl amines in water or 95% ethanol. In addition, the hydroxylation of 2-chloro-4-hydroxybenzoic acid was validated on a 100-g scale under air.
Cinnamamide compounds of the formula ##STR1## where X is chloro, bromo or iodo and R is hydrogen or alkyl of 1 to 3 carbons As pharmaceuticals which are useful in the treatment or prophylaxis for convulsions.