Facile Diastereoselective Reactions of Chiral 1,3-Oxazolidines with Grignard Reagents; Asymmetric Syntheses of 2-Substituted and 2,6-Disubstituted Piperidines
An Improved Resolution Of 2-Methyl Piperidine And Its Use in The Synthesis Of Homochiral Trans-2,6-Dialkyl Piperidines
作者:Mauro F. A. Adamo、Varinder K. Aggarwal、Matthew A. Sage
DOI:10.1080/00397919908086162
日期:1999.5
Abstract An efficient procedure for the resolution of 2-methylpiperidine is described. The enantiomers were used for a short and effective synthesis of the C2 symmetric piperidine, (+)-lupetidine and (+)-epidihydropinidine.
[EN] SUBSTITUTED BIPHENYL GPR40 MODULATORS<br/>[FR] MODULATEURS DU GPR40 À BIPHÉNYLE SUBSTITUÉ
申请人:AMGEN INC
公开号:WO2009048527A1
公开(公告)日:2009-04-16
The present invention provides compounds useful, for example, for treating metabolic disorders in a subject. Such compounds have the general formula I: 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.
Cinchonidine salt of (4S,5S)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid, useful as intermediate in the preparation of cannabinoid CB1 neutral antagonists
申请人:Esteve Química, S.A.
公开号:EP2314578A1
公开(公告)日:2011-04-27
The present invention relates to a cinchonidine salt of (4S,5S)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid. This cinchonidine salt is prepared by enantiomeric resolution of a compound of formula (I) comprising:
the reaction of compound of formula (I) with cinchonidine in a suitable solvent, thereby resulting in the cinchonidine salt of the enantiomer (4S,5S) of formula (II); and optionally isolating said salt. The cinchonidine salt according to formula (II) is a useful intermediate in the preparation of a cannabinoid CB1 neutral antagonist.
The present invention provides compounds useful, for example, for treating metabolic disorders in a subject. Such compounds have the general formula I:
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.
Compounds are provided having the structure of the following Formula I:
where R, R1, R2, R3a and R3b are as defined herein. Pharmaceutical compositions comprising such compounds, as well as methods related to their manufacture and use, are also provided.
所提供的化合物具有下式 I 的结构:
其中 R、R1、R2、R3a 和 R3b 如本文所定义。此外,还提供了包含此类化合物的药物组合物,以及与其制造和使用相关的方法。