A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was presented in this study. This approach affords facile access to a range of fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions showcase high yields and enantioselectivities under mild reaction conditions
PYRIDINE AND PYRIMIDINE DERIVATIVES AS MGLUR2 ANTAGONISTS
申请人:F. Hoffmann-La Roche AG
公开号:EP2001849A1
公开(公告)日:2008-12-17
[EN] PYRIDINE AND PYRIMIDINE DERIVATIVES AS MGLUR2 ANTAGONISTS<br/>[FR] DERIVES DE PYRIDINE ET DE PYRIMIDINE EN TANT QU'ANTAGONISTES DE MGLUR2
申请人:HOFFMANN LA ROCHE
公开号:WO2007110337A1
公开(公告)日:2007-10-04
[EN] The present invention relates to compounds of formula (I), a process for the manufacture thereof, their use for the preparation of medicaments for treating CNS disorders and pharmaceutical compositions containing them: wherein A, B, X, Y, R1, R2, R3 and R4 are as defined in the description and claims. [FR] La présente invention concerne des composés de formule (I), un procédé de fabrication de ces composés, leur utilisation pour la préparation de médicaments pour le traitement de troubles du SNC et des compositions pharmaceutiques les contenant : dans laquelle A, B, X, Y, R1, R2, R3 et R4 sont tels que définis dans la description et dans les revendications.