Aliphatic propargylamines as cellular rescue agents
申请人:University of Saskatchewan
公开号:US06251950B1
公开(公告)日:2001-06-26
The present invention relates to the use of a group of propargylamines of the general formula (I)
wherein R1 is hydrogen or CH3 and R2 is (CH2)nCH3 and n is an integer from 0 to 16, and salts thereof, as cellular rescue agents in the treatment and prevention of diseases in which cell death occurs by apoptosis. Some of the compounds of formula I are novel. The invention is also directed to the use of these compounds in the treatment of these diseases, as well as to processes for the preparation of the compounds.
En Route to (<i>S</i>)-Selective Chemoenzymatic Dynamic Kinetic Resolution of Aliphatic Amines. One-Pot KR/Racemization/KR Sequence Leading to (<i>S</i>)-Amides
作者:Lahssen El Blidi、Malek Nechab、Nicolas Vanthuyne、Stéphane Gastaldi、Michèle P. Bertrand、Gérard Gil
DOI:10.1021/jo900074w
日期:2009.4.3
A one-pot sequential process, involving a radical racemization and an enzymatic resolution, provides access to (S)-amides, from racemic amines, with ee and yields ranging from 78 to 94% and 58 to 80%, respectively.
Regioselective Alkylative Cross-Coupling of Remote Unactivated C(<i>sp</i><sup>3</sup>)–H Bonds
作者:Scott M. Thullen、Sean M. Treacy、Tomislav Rovis
DOI:10.1021/jacs.9b07014
日期:2019.9.11
The functionalization of unactivatedC(sp3)-H bonds poses a significant challenge due to their ubiquity and relative similarity in most organic frameworks. Herein, we describe the use of a combined photoredox and nickel catalytic system for the regioselective C(sp3)-C(sp3) coupling of unactivatedC(sp3)-H bonds and alkyl bromides. Positional selectivity is dictated by a 1,5-hydrogen atom transfer (HAT)
Aminoazanium of DABCO: An Amination Reagent for Alkyl and Aryl Pinacol Boronates
作者:Xingxing Liu、Qing Zhu、Du Chen、Lu Wang、Liqun Jin、Chao Liu
DOI:10.1002/anie.201913388
日期:2020.2.10
The aminoazanium of DABCO (H2 N-DABCO) has been developed as a general and practical amination reagent for the direct amination of alkyl and aryl pinacolboronates. This compound is stable and practical for use as a reagent. Various primary, secondary. and tertiary alkyl-Bpin and aryl-Bpin substrates were aminated to give the corresponding amine derivatives. The amination is stereospecific. The anti-Markovnikov