[EN] PROCESS FOR MAKING A RENIN INHIBITOR AND RELATED INTERMEDIATES<br/>[FR] PROCÉDÉS POUR LA FABRICATION D'UN INHIBITEUR DE RÉNINE
申请人:MERCK SHARP & DOHME
公开号:WO2010011584A3
公开(公告)日:2010-07-29
A Practical Synthesis of Renin Inhibitor MK-1597 (ACT-178882) via Catalytic Enantioselective Hydrogenation and Epimerization of Piperidine Intermediate
described. The synthetic route provided MK-1597 in nine steps and 29% overall yield from commercially available p-cresol (7). The key features of this sequence include a catalytic asymmetric hydrogenation of a tetrasubstituted ene−ester, a highly efficient epimerization/saponification sequence of 4 which sets both stereocenters of the molecule, and a short synthesis of amine fragment 2.