[EN] BIARYL HETEROCYCLIC COMPOUNDS AND METHODS OF MAKING AND USING THE SAME<br/>[FR] COMPOSES HÉTÉROCYCLIQUES DE BIARYLE ET PROCÉDÉS DE FABRICATION ET D'UTILISATION DESDITS COMPOSÉS
申请人:RIB X PHARMACEUTICALS INC
公开号:WO2006022794A1
公开(公告)日:2006-03-02
The present invention relates generally to the field of anti-infective, anti-proliferative, anti-inflammatory, and prokinetic agents. More particularly, the invention relates to a family of tricyclic compounds that are useful as such agents.
A direct catalyticasymmetricaddition of acetonitrile to aldehydes that realizes over 90 % ee is the ultimate challenge in alkylnitrile addition chemistry. Herein, we report achieving high enantioselectivity by the strategic use of a sterically demanding NiII pincer carbene complex, which afforded highly enantioenriched β‐hydroxynitriles. This highly atom‐economical process paves the way for exploiting
Facile construction of functionalized periodic mesoporous organosilica for Ir-catalyzed enantioselective reduction of α-cyanoacetophenones and α-nitroacetophenones
作者:Chen Chen、Lingyu Kong、Tanyu Cheng、Ronghua Jin、Guohua Liu
DOI:10.1039/c4cc04169k
日期:——
A facile construction of organoiridium-functionalized periodic mesoporous organosilica and its application in the enantioselective reduction of α-cyano and α-nitroacetophenones are studied.
Preparative access to medicinal chemistry related chiral alcohols using carbonyl reductase technology
作者:Andrew S. Rowan、Thomas S. Moody、Roger M. Howard、Toby J. Underwood、Iain R. Miskelly、Yanan He、Bo Wang
DOI:10.1016/j.tetasy.2013.09.015
日期:2013.11
Libraries of highly enantioenriched secondary alcohols in both enantiomeric forms were synthesised by enzymatic reduction of their parent ketones using selectAZyme (TM) carbonyl reductase (CRED) technology. Commercially available CREDs were able to reduce a range of substrate classes efficiently and with very high enantioselectivity. Matching substrate classes to small subsets of CREDs enabled the fast development of preparative bioreductions and the rapid generation of 100-1500 mg samples of chiral alcohols in typically >95% ee and the majority in >= 99.0% ee. The conditions for small scale synthesis were then scaled up to 0.5 kg to deliver one of the chiral alcohols, (S)-1-(4-bromophenyl)-2-chloroethanol, in 99.8% ee and 91% isolated yield. (C) 2013 Elsevier Ltd. All rights reserved.