[EN] CONFORMATIONALLY CONSTRAINED CARBOXYLIC ACID DERIVATIVES USEFUL FOR TREATING METABOLIC DISORDERS<br/>[FR] DÉRIVÉS D'ACIDE CARBOXYLIQUE CONFORMATIONNELLEMENT DÉPENDANTS, UTILES DANS LE TRAITEMENT DE TROUBLES DU MÉTABOLISME
申请人:AMGEN INC
公开号:WO2009111056A1
公开(公告)日:2009-09-11
The present invention provides compounds useful, for example, for treating metabolic disorders in a subject. Such compounds have the general formula I or the general formula III: where the definitions of the variables are provided herein. The present invention also provides compositions that include, and methods for using, the compounds in preparing medicaments and for treating metabolic disorders such as, for example, type II diabetes.
Enantioselective Michael Addition of Dicyanoolefins to α,β-Unsaturated Aldehydes in Aqueous Medium
作者:Jun Lu、Feng Liu、Teck-Peng Loh
DOI:10.1002/adsc.200800145
日期:2008.8.4
A pool of water-compatible catalysts, namely dialkyl-(S)-prolinols, has been developed for the enantioselective directvinylogousMichaeladdition reaction of vinylmalononitriles to α,β-unsaturatedaldehydes in aqueous medium. In many cases, the products can be obtained in almost optically pure form (>96% ee) after a single recrystallization.
Enantioselective direct vinylogous Michael addition reaction catalyzed by organic molecules
作者:Jun Lu、Feng Liu、Wei-Juan Zhou、Teck-Peng Loh
DOI:10.1016/j.tetlet.2008.07.016
日期:2008.9
Chiral 2-azanorbornyl-3-methanol is used as an organocatalyst for the highly enantioselective directvinylogousMichaeladdition reaction of vinyl malononitriles to α,β-unsaturatedaldehydes. In many cases, the products can be obtained in almost optically pure form (>95% ee) after a single recrystallization.
organocatalytic addition of dicyanoalkylidenes to quinones catalyzed by Cinchona alkaloids leading to formation of 1,4-diketone derivatives with high diastereomeric ratios (up to >98 : <2 dr) and enantioselectivities (up to 99% ee) has been developed; the opticallyactive compounds obtained are useful for a number of transformations, e.g. the synthesis of opticallyactive alpha-aryl ketones.
A simple and efficient process for the large scale preparation of agomelatine, an antidepressant drug is described. Agomelatine was synthesized from 7-methoxy-1-tetralone in five steps. The route reported employs readily, commercially viable starting materials, reagents and potentially be utilized for the process of synthesis of agomelatine.