Here we report an iridium-catalyzed asymmetric umpolung allylation of imines as a general approach to prepare 1,4-disubstituted homoallylic amines, a fundamental class of compounds that are hitherto not straightforward to obtain. This transformation proceeds by a cascade involving an intermolecular regioselective allylation of 2-azaallyl anions and a following 2-aza-Cope rearrangement, utilizes easily
Enantioselective Hydroalkenylation of Olefins with Enol Sulfonates Enabled by Dual Copper Hydride and Palladium Catalysis
作者:Alexander W. Schuppe、James Levi Knippel、Gustavo M. Borrajo-Calleja、Stephen L. Buchwald
DOI:10.1021/jacs.1c02117
日期:2021.4.14
The catalytic enantioselective synthesis of α-chiral olefins represents a valuable strategy for rapid generation of structural diversity in divergent syntheses of complex targets. Herein, we report a protocol for the dual CuH- and Pd-catalyzed asymmetric Markovnikov hydroalkenylation of vinyl arenes and the anti-Markovnikov hydroalkenylation of unactivated olefins, in which readily available enol triflates
This invention is directed to oxoazaheterocycyl compounds which inhibit Factor Xa, to oxoazaheterocycyl compounds which inhibit both Factor Xa and Factor IIa, to pharmaceutical compositions comprising these compounds, to intermediates useful for preparing these compounds, to a method of directly inhibiting Factor Xa and to a method of simultaneously directly inhibiting Factor Xa and Factor IIa..
[EN] SUBSTITUTED OXOAZAHETEROCYCLYL FACTOR Xa INHIBITORS<br/>[FR] COMPOSES OXOAZAHETEROCYCLYLE SUBSTITUES INHIBITEURS DU FACTEUR Xa
申请人:AVENTIS PHARMACEUTICALS PRODUCTS INC.
公开号:WO1999037304A1
公开(公告)日:1999-07-29
(EN) This invention is directed to oxoazaheterocyclyl compounds which inhibit factor Xa, to pharmaceutical compositions comprising these compounds, to intermediates useful for preparing these compounds and to a method of inhibiting factor Xa.(FR) L'invention porte sur des composés oxoazahétérocyclyle qui inhibent le facteur Xa, sur des compositions pharmaceutiques comprenant ces composés, sur des intermédiaires utiles dans la préparation de ces composés et sur un procédé d'inhibition du facteur Xa.