Nickel-Catalyzed Remote Asymmetric Hydroalkylation of Alkenyl Ethers to Access Ethers of Chiral Dialkyl Carbinols
作者:Jia-Wang Wang、Zhen Li、Deguang Liu、Jun-Yang Zhang、Xi Lu、Yao Fu
DOI:10.1021/jacs.3c02950
日期:2023.5.10
bond formation is privileged in the retrosynthetic analysis due to the universality of sp3-hybridized carbon atoms in organic molecules. Herein, we report a nickel-catalyzed remote asymmetric hydroalkylation of alkenyl ethers via synchronous implementation of alkene isomerization and enantioselective C(sp3)–C(sp3) bond formation. Regression analysis of catalyst structure–activityrelationships accelerates
Amide and urea derivatives having anti-hypercholesteremic activity, their preparation and their therapeutic uses
申请人:SANKYO COMPANY LIMITED
公开号:EP0632036A2
公开(公告)日:1995-01-04
Compounds of formula (I):
in which : R1 is alkyl or a group of formula (II), (III), (IV) or (V):
and in which the groups R2, R3, R4 and R5 are hydrogen or various organic groups ; and pharmaceutically acceptable salts thereof are useful in the treatment and prophylaxis of hypercholesteremia and arteriosclerosis ; methods for the preparation of such compounds are also provided.