Synthesis of chiral, nonracemic methyleneaziridines derived from β-amino alcohols
摘要:
An efficient three step process for the synthesis of chiral, nonracemic methyleneaziridines derived from homochiral beta-amino alcohols is described, Methyleneaziridines 4a-e produced using this chemistry have been shown to possess high enantiomeric purities (greater than or equal to 95% ee). Copyright (C) 1996 Elsevier Science Ltd
[EN] HETEROARYL COMPOUNDS AND THEIR USE AS THERAPEUTIC DRUGS<br/>[FR] COMPOSÉS HÉTÉROARYLE ET LEUR UTILISATION COMME MÉDICAMENTS THÉRAPEUTIQUES
申请人:DONG-A SOCIO HOLDINGS CO LTD
公开号:WO2017039331A1
公开(公告)日:2017-03-09
The present invention provides heterocyclic compounds, the stereoisomer thereof, the enantiomer thereof, or the pharmaceutically acceptable salt, which are capable of modulating the activity of Mer receptor tyrosine kinase (MERTK). This invention also provides pharmaceutical compositions thereof, methods to prepare the said compounds, and the use of such compounds as a medicament. The present invention is directed to MERTK inhibitory compounds with marked potency, thereby having an outstanding potential for a pharmaceutical intervention of cancer and any other diseases related to MERTK dysregulation.
Structure-activity analysis of peptidic Chlamydia HtrA inhibitors
作者:Ayodeji A. Agbowuro、Jimin Hwang、Emma Peel、Rami Mazraani、Alexandra Springwald、James W. Marsh、Laura McCaughey、Allan B. Gamble、Wilhelmina M. Huston、Joel D.A. Tyndall
DOI:10.1016/j.bmc.2019.07.049
日期:2019.9
Chlamydia trachomatis high temperature requirement A (CtHtrA) is a serineprotease that performs proteolytic and chaperone functions in pathogenic Chlamydiae; and is seen as a prospective drug target. This study details the strategies employed in optimizing the irreversible CtHtrA inhibitor JO146 [Boc-Val-Pro-ValP(OPh)2] for potency and selectivity. A series of adaptations both at the warhead and specificity
Diastereoselective addition of terminal alkynes to chiral nitrones: asymmetric synthesis of propargylic N-hydroxylamines
作者:Samir K. Patel、Sandrine Py、Shashi U. Pandya、Pierre Y. Chavant、Yannick Vallée
DOI:10.1016/s0957-4166(03)00032-6
日期:2003.3
1,3-Asymmetric induction in the Et2Zn-catalyzed addition of terminal alkynes was studied with nitrones bearing a chiral auxiliary on their nitrogen atom. The obtained propargylic N-hydroxylamines were generally isolated in good yields and with satisfactory to excellent diastereoselectivities.
on the asymmetric induction as well as catalyst efficiency. The chiral centers in AA' and AA' amino acid residues in 5 were also found to have some influence on the catalytic asymmetric induction. Possible mechanism which can accommodate these effects are discussed. Asymmetricreduction of RCOCO-AA-OMe (13) via hydrosilylation was carried out to give chiral depsipeptide units. The asymmetric hydrogenation
A new class of pincer-like chiral [O−NO−]ZrR2 systems has been developed for efficient asymmetric hydroamination of primary aminoalkenes with up to 94% ee and ≥95% conversion.