Joshi, N..N.; Mamdapur, V. R.; Chadha, M. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1984, vol. 23, # 3, p. 238 - 240
Joshi, N..N.; Mamdapur, V. R.; Chadha, M. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1984, vol. 23, # 3, p. 238 - 240
Enantioselective hydroamination of unactivated terminal alkenes
作者:Senjie Ma、Yumeng Xi、Haoyu Fan、Sven Roediger、John F. Hartwig
DOI:10.1016/j.chempr.2021.12.005
日期:2022.2
Asymmetric alkene hydroamination could be a direct route to valuable chiralamines from abundant feedstocks. However, most asymmetric hydroaminations have limited synthetic value because they require a large excess of alkene, occur with modest enantioselectivity, and proceed with limited tolerance of functional groups. We report an enantioselective, intermolecularhydroamination of unactivated terminal
不对称烯烃氢胺化可能是从丰富的原料中生产有价值的手性胺的直接途径。然而,大多数不对称氢胺化反应的合成价值有限,因为它们需要大量过量的烯烃,以适度的对映选择性发生,并且对官能团的耐受性有限。我们报道了未活化末端烯烃的对映选择性分子间加氢胺化,该反应在等摩尔量的烯烃和胺的情况下发生,耐受许多官能团,并且以高产率发生,具有高对映选择性和周转数。机理研究揭示了实现对映选择性 N- 需要解决的因素,包括加成的可逆性、产物胺的可逆氧化、烯烃反应物的竞争异构化以及标准催化剂前体中的牺牲配体被手性双膦不利取代。烯烃的 H 加成。
MACROCYCLIC DERIVATIVES ACTING AS XIA FACTOR INHIBITOR
申请人:Medshine Discovery Inc.
公开号:EP3957638A1
公开(公告)日:2022-02-23
Disclosed are a class of macrocyclic derivatives, a preparation method therefor, a pharmaceutical composition containing the derivatives, and the use thereof as therapeutic agents, particularly as XIa factor inhibitors and in the preparation of a drug for treating and preventing thromboembolisms and other diseases. Particularly disclosed are compounds shown by formula (I), an isomer thereof and a pharmaceutically acceptable salt thereof.
Macrocyclic derivatives, preparation methods therefor and pharmaceutical compositions comprising said derivatives, and uses thereof as therapeutic agents, especially as factor XIa inhibitors and in drugs for treating and preventing thromboembolisms and other diseases. Specifically disclosed is a compound represented by formula (I), and an isomer and pharmaceutically acceptable salt thereof.