[EN] NOVEL 5 or 8-SUBSTITUTED IMIDAZO [1, 5-a] PYRIDINES AS SELECTIVE INHIBITORS OF INDOLEAMINE AND/OR TRYPTOPHANE 2, 3-DIOXYGENASES<br/>[FR] NOUVELLES IMIDAZO[1,5-A]PYRIDINES SUBSTITUÉES EN POSITION 5 OU 8 EN TANT QU'INDOLEAMINE ET/OU TRYPTOPHANE 2,3-DIOXYGÉNASES
申请人:BEIGENE LTD
公开号:WO2018054365A1
公开(公告)日:2018-03-29
Disclosed herein are 5 or 8-substituted imidazo [1, 5-a] pyridines and pharmaceutical compositions comprising at least one such 5 or 8-substituted imidazo [1, 5-a] pyridines, processes for the preparation thereof, and the use thereof in therapy. Disclosed herein are certain 5 or 8-substituted imidazo [1, 5-a] pyridines that can be useful for inhibiting indoleamine 2, 3-dioxygenase and/or tryptophane 2, 3-dioxygenase and for treating diseases or disorders mediated thereby.
Single mutation of a “second sphere” residue of CHMOs could control its enantio- and regiopreference optionally.
单个CHMOs的“第二球”残基的突变可以选择性地控制其对映选择性和位置选择性。
Enantioselective Synthesis of Chiral Oxime Ethers: Desymmetrization and Dynamic Kinetic Resolution of Substituted Cyclohexanones
作者:Sri Krishna Nimmagadda、Sharath Chandra Mallojjala、Lukasz Woztas、Steven E. Wheeler、Jon C. Antilla
DOI:10.1002/anie.201611602
日期:2017.2.20
developed by catalytic desymmetrization of 4‐substituted cyclohexanones with O‐arylhydroxylamines and is catalyzed by a chiral BINOL‐derived strontium phosphate with excellent yields and good enantioselectivities. In addition, chiral BINOL‐derived phosphoric acid catalyzeddynamickineticresolution of α‐substituted cyclohexanones has been performed and yields versatile intermediates in high yields and
The Silicon–Hydrogen Exchange Reaction: A Catalytic σ-Bond Metathesis Approach to the Enantioselective Synthesis of Enol Silanes
作者:Hui Zhou、Han Yong Bae、Markus Leutzsch、Jennifer L. Kennemur、Diane Bécart、Benjamin List
DOI:10.1021/jacs.0c06677
日期:2020.8.12
stoichiometric chiral reagents. We now describe a catalytic approach in which strongly acidic and confined imidodiphosphorimidates (IDPi) catalyze highly enantioselective interconversions of ketones and enol silanes. These “silicon–hydrogen exchange reactions” enable access to enantiopure enol silanes via tautomerizing σ-bond metatheses, either in a deprotosilylative desymmetrization of ketones with allyl
Catalytic Enantioselective Friedländer Condensations: Facile Access to Quinolines with Remote Stereogenic Centers
作者:Le Li、Daniel Seidel
DOI:10.1021/ol1023932
日期:2010.11.5
Enamine catalysis enables the first catalyticenantioselective Friedländer reaction. The desymmetrization of 4-substituted cyclohexanones upon reaction with o-aminobenzaldehydes allows for the synthesis of quinolines with remote stereogeniccenters. These heterocycles, which are obtained with high levels of enantioselectivity, serve as precursors for chiral tacrine analogues.