Directing the Activation of Donor-Acceptor Cyclopropanes Towards Stereoselective 1,3-Dipolar Cycloaddition Reactions by Brønsted Base Catalysis
作者:Jakob Blom、Andreu Vidal-Albalat、Julie Jørgensen、Casper L. Barløse、Kamilla S. Jessen、Marc V. Iversen、Karl Anker Jørgensen
DOI:10.1002/anie.201706150
日期:2017.9.18
first stereoselective organocatalyzed [3+2] cycloaddition reaction of donor-acceptor cyclopropanes is presented. By using an optically active bifunctional Brønsted base catalyst, racemic di-cyano cyclopropylketones can be activated to undergo a stereoselective 1,3-dipolar reaction with mono- and polysubstituted nitroolefins. The reaction affords functionalized cyclopentanes with threecontiguous stereocenters
[EN] PROCESS AND INTERMEDIATES FOR THE PREPARATION OF NEP INHIBITORS<br/>[FR] PROCESSUS ET INTERMÉDIAIRES POUR LA PRÉPARATION D'INHIBITEURS DE LA NÉPRILYSINE (NEP)
申请人:NOVARTIS AG
公开号:WO2016128924A1
公开(公告)日:2016-08-18
The present invention relates to a new chemical synthesis, intermediates and catalysts useful for the preparation of the neprilysin (NEP) inhibitor sacubitril. It further relates to new intermediate compounds and their use for said new chemical synthesis route.
Process and intermediates for the preparation of NEP inhibitors
申请人:Novartis AG
公开号:US10385004B2
公开(公告)日:2019-08-20
The present invention relates to a new chemical synthesis, intermediates and catalysts useful for the preparation of the neprilysin (NEP) inhibitor sacubitril. It further relates to new intermediate compounds and their use for said new chemical synthesis route.