[EN] HETEROCYCLIC COMPOUNDS, COMPOSITIONS COMPRISING HETEROCYCLIC COMPOUND, AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES, COMPOSITIONS COMPRENANT LE COMPOSÉ HÉTÉROCYCLIQUE, ET LEURS PROCÉDÉS D'UTILISATION
申请人:JS INNOPHARM SHANGHAI LTD
公开号:WO2019076358A1
公开(公告)日:2019-04-25
Disclosed herein are compounds of formula I and/or a stereoisomer, stable isotopologue, and/or pharmaceutically acceptable salts thereof; and therapeutic uses of these compounds, which are inhibitors of tryptophan 2, 3-dioxygenase 2 (TDO2) and/or indoleamine 2, 3-dioxygenase 1 (IDO1), potentially useful in the treatment of diseases treatable, such as cancers.
Primary Anion–π Catalysis of Epoxide‐Opening Ether Cyclization into Rings of Different Sizes: Access to New Reactivity
作者:Miguel Paraja、Stefan Matile
DOI:10.1002/anie.202000579
日期:2020.4.6
a promise anion-πcatalysis has been reluctant to live up to. Herein, we report non-trivial reactions that work with anion-πcatalysis, but not with Brønsted acids, under comparable conditions. Namely, we show that the anion-π templated autocatalysis and epoxide opening with alcoholate-π interactions can provide access to unconventional ring chemistry. For smaller rings, anion-πcatalysis affords anti-Baldwin
Alcoholysis of Epoxides Catalyzed by Tetracyanoethylene and Dicyanoketene Acetals
作者:Yukio Masaki、Tsuyoshi Miura、Masahito Ochiai
DOI:10.1246/bcsj.69.195
日期:1996.1
A typical π-acid tetracyanoethylene and capto-dative olefin dicyanoketeneacetals were found to catalyze stereospecific alcoholysis of epoxides at the ambient temperature to 50 °C in good yields. Mildness and significant chemoselectivity of the catalysts were demonstrated by intactness of tetrahydropyranyl ether and ethylene acetal groups. A novel regioselectivity associated with anchimeric assistance
Disclosed herein are 2'-spiro-nucleosides of formula I and derivatives thereof useful for treating a subject infected by hepatitis C virus or dengue virus. Formula (I), where z is a four-or five-membered ring selected from among radicals a-o represented by de following structures (II) where * represents the point of attachment to the 2'-carbon.
Enantioselective Aza-Heck Cyclizations of <i>N</i>-(Tosyloxy)carbamates: Synthesis of Pyrrolidines and Piperidines
作者:Xiaofeng Ma、Ian R. Hazelden、Thomas Langer、Rachel H. Munday、John F. Bower
DOI:10.1021/jacs.8b12689
日期:2019.2.27
Pd(0)-systems modified with SPINOL-derived phosphoramidate ligands promote highly enantioselective aza-Heck cyclizations of alkenyl N-(tosyloxy)carbamates. The method provides versatile access to challenging N-heterocycles and represents the broadest scope enantioselective aza-Heck protocol developed to date.