[EN] OPTICALLY PURE 4-ARYL-2-HYDROXYTETRONIC ACIDS<br/>[FR] SYNTHESE D'ACIDES 4-ARYLE-2-HYDROXYTETRONIQUES OPTIQUEMENT PURS
申请人:THE OHIO STATE UNIVERSITY RESEARCH FOUNDATION
公开号:WO1995023139A1
公开(公告)日:1995-08-31
(EN) The present invention relates to a method for synthesis of optically pure stereogenically labile 4-aryl-2-hydroxytetronic acids from an optically pure aldehyde. The invention further relates to the use of such optically pure compounds as potent inhibitors of platelet aggregation by working at the level of cyclooxygenase, and additionally as inhibitors of cyclooxygenase and 5-lipoxygenase. The invention further relates to the pharmaceutical use of such compounds in the treatment of coronary artery diseases, especially in the treatment and/or prevention of atherosclerosis, and in the treatment of various inflammatory pathologies, especially arthritis.(FR) L'invention concerne un procédé de synthèse d'acides 4-aryle-2-hydroxytétronique optiquement purs stéréogéniquement labiles à partir d'aldéhyde optiquement pur. L'invention concerne également l'utilisation desdits composés optiquement purs en tant qu'inhibiteurs puissants de l'aggrégation plaquettaire par un travail au niveau de la cyclooxygènase, et de plus en tant qu'inhibiteurs de cyclooxygènase et de 5-lipooxygènase. L'invention concerne en outre l'utilisation pharmaceutique desdits composés dans le traitement de maladies des artères coronaires, notamment dans le traitement et/ou la prévention de l'athérosclérose, et dans le traitement de diverses pathologies inflammatoires, notamment de l'arthrite.
The Synthesis of Chiral α-Aryl α-Hydroxy Carboxylic Acids via RuPHOX-Ru Catalyzed Asymmetric Hydrogenation
作者:Huan Guo、Jing Li、Delong Liu、Wanbin Zhang
DOI:10.1002/adsc.201700846
日期:2017.10.25
A ruthenocenyl phosphino‐oxazoline‐ruthenium complex (RuPHOX−Ru) catalyzedasymmetrichydrogenation of α‐aryl keto acids has been successfully developed, affording the corresponding chiral α‐aryl α‐hydroxy carboxylic acids in high yields and with up to 97% ee. The reaction could be performed on a gram scale with a relatively low catalyst loading (up to 5000 S/C) and the resulting products can be transformed
已成功开发了钌烯基膦基-恶唑啉-钌络合物(RuPHOX-Ru)催化的α-芳基酮酸不对称氢化反应,可提供高收率和ee高达97%的相应手性α-芳基α-羟基羧酸。该反应可以在相对较低的催化剂负载量(至多5000 S / C)下以克为单位进行,所得产物可以转化为几种手性结构单元,生物活性化合物和手性药物。
Efficient syntheses for optically pure stereogenically labile 4-substituted-2-hydroxytetronic acids