[EN] (R)-4-(HETEROARYL) PHENYLETHYL DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM [FR] DÉRIVÉS DE (R)-4-(HÉTÉROARYL)PHÉNYLÉTHYLE ET COMPOSITIONS PHARMACEUTIQUES LES CONTENANT
[EN] (R)-4-(HETEROARYL) PHENYLETHYL DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM [FR] DÉRIVÉS DE (R)-4-(HÉTÉROARYL)PHÉNYLÉTHYLE ET COMPOSITIONS PHARMACEUTIQUES LES CONTENANT
of carboxylic acids. Herein, we reported the development of a palladium-catalyzed highly enantioselective Markovnikov hydroxycarbonylation of vinyl arenes with CO and water. A monodentate phosphoramidite ligand L6 plays vital role in the reaction. The reaction tolerates a range of functional groups, and provides a facile and atom-economical approach to an array of 2-arylpropanoic acids including several
不对称羟基羰基化是合成羧酸的最基本但最具挑战性的方法之一。在此,我们报道了钯催化的乙烯基芳烃与 CO 和水的高度对映选择性马尔可夫尼科夫羟基羰基化的发展。单齿亚磷酰胺配体L6反应中起重要作用。该反应耐受一系列官能团,并为一系列 2-芳基丙酸(包括几种常用的非甾体抗炎药)提供了一种简便且原子经济的方法。该催化体系还使乙烯基芳烃与醇发生不对称马尔科夫尼科夫氢烷氧基羰基化反应,得到 2-芳基丙酸酯。机理研究表明,氢化钯是不可逆的,是区域和对映体决定步骤,而水解/醇解可能是限速步骤。
[EN] 2-ARYL-PROPIONIC ACIDS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM<br/>[FR] ACIDES 2-ARYL-PROPIONIQUES ET COMPOSITIONS PHARMACEUTIQUES RENFERMANT CEUX-CI
申请人:DOMPE SPA
公开号:WO2003043625A1
公开(公告)日:2003-05-30
(R) and (S) 2-Aryl-propionic acids, and pharmaceutical compositions that contain them, are useful in inhibiting chemotactic activation of neutrophils (PMN leukocytes) induced by the interaction of Interleukin-8 (IL-8) with CXCR1 and CXCR2 membrane receptors. The acids are used for the prevention and treatment of pathologies deriving from said activation. In particular, the (R) enantiomers of said acids are lacking cyclo-oxygenase inhibition activity and are particularly useful in the treatment of neutrofil-dependent pathologies such as psoriasis, ulcerative colitis, melanoma, chronic obstructive pulmonary disease (COPD),bollous pemphigo, rheumatoid arthritis, idiopathic fibrosis, glomerulonephritis and in the prevention and treatment of damages caused by ischemia and reperfusion.
2-Aryl-propionic acids and pharmaceutical compositions containing them
申请人:Allegretti Marcello
公开号:US20050038119A1
公开(公告)日:2005-02-17
(R) and (S) 2-Aryl-propionic acids, and pharmaceutical compositions that contain them, are useful in inhibiting chemotactic activation of neutrophils (PMN leukocytes) induced by the interaction of Interleukin-8 (IL-8) with CXCR1 and CXCR2 membrane receptors. The acids are used for the prevention and treatment of pathologies deriving from said activation. In particular, the (R) enantiomers of said acids are lacking cyclo-oxygenase inhibition activity and are particularly useful in the tratment of neutrofil-dependent pathologies such as psoriasis, ulcerative colitis, melanoma, chronic obstructive pulmonary disease (COPD), bollous pemphigo, rheumatoid arthritis, idiopathic fibrosis, glomerulonephritis and in the prevention and treatment of damages caused by ischemia and reperfusion.