Control of the Chemoselectivity of Metal <i>N</i>-Aryl Nitrene Reactivity: C–H Bond Amination versus Electrocyclization
作者:Chen Kong、Navendu Jana、Crystalann Jones、Tom G. Driver
DOI:10.1021/jacs.6b07026
日期:2016.10.12
A mechanism study to identify the elements that control the chemoselectivity of metal-catalyzed N-atom transfer reactions of styryl azides is presented. Our studies show that the proclivity of the metal N-aryl nitrene to participate in sp3-C-H bond amination or electrocyclization reactions can be controlled by either the substrate or the catalyst. Electrocyclization is favored for mono-β-substituted
介绍了一种机制研究,以确定控制金属催化的苯乙烯基叠氮化物 N 原子转移反应的化学选择性的元素。我们的研究表明,金属 N-芳基氮烯参与 sp3-CH 键胺化或电环化反应的倾向可以通过底物或催化剂来控制。单-β-取代和空间上非拥挤的苯乙烯基叠氮化物有利于电环化,而当存在叔烯丙基反应中心时,优选通过 H 原子抽离-自由基重组机制进行 sp3-CH 键胺化。即使存在减弱的烯丙基 CH 键,我们的数据表明吲哚仍然是通过电环化而不是常见的烯丙基中间体形成的。
[EN] HETEROARYL PYRROLIDINE AND PIPERIDINE OREXIN RECEPTOR AGONISTS<br/>[FR] AGONISTES DU RÉCEPTEUR DE L'OREXINE DE TYPE PYRROLIDINE ET PIPÉRIDINE HÉTÉROARYLE
申请人:MERCK SHARP & DOHME
公开号:WO2021026047A1
公开(公告)日:2021-02-11
The present invention is directed to heteroaryl pyrrolidine and piperidine compounds which are agonists of orexin receptors. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which orexin receptors are involved.
Stereoselective multigram-scale synthesis of cis- and trans-β-phenylproline derivatives
作者:Isabel Rodríguez、M. Isabel Calaza、Ana I. Jiménez、Carlos Cativiela
DOI:10.1016/j.tet.2012.09.069
日期:2012.11
phenyl substituent attached to the pyrrolidine β carbon (cis- and trans-β-phenylproline) have been developed. The cis derivative was synthesized from N-Boc-β-alanine in six steps and 78% overall yield. The generation of a vinyl triflate with full regiochemical control together with a high-yielding cross-coupling reaction and a completely stereoselective hydrogenation are at the basis of the high efficiency
The present invention is directed to bicyclo[4.1.0]heptane pyrrolidine compounds which are agonists of orexin receptors. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which orexin receptors are involved.
[EN] 3-AMINO PYRROLIDINE AND PIPERIDINE MACROCYCLIC OREXIN RECEPTOR AGONISTS<br/>[FR] AGONISTES DU RÉCEPTEUR DE L'OREXINE DE TYPE 3-AMINO PYRROLIDINE ET PIPÉRIDINE MACROCYCLIQUE
申请人:MERCK SHARP & DOHME
公开号:WO2022109117A1
公开(公告)日:2022-05-27
The present invention is directed to 3-amino pyrrolidine and piperidine macrocyclic compounds which are agonists of orexin receptors. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which orexin receptors are involved.