使用钌/ N-杂环卡宾(NHC)催化剂,通过直接氢化完成对四氢咪唑并[1,2- a ]吡啶的对映选择性合成。该反应放弃了对保护基团或活化基团的需要,以完全的区域选择性,良好至优异的产率,高达98:2的对映体比例进行,并且耐受宽泛的官能团。5,6,7,8-四氢咪唑并[1,2一]吡啶,其在许多生物活性分子中发现,直接通过该方法获得的,其适用性是由几个功能性分子的(正式)合成证明。
[EN] PYRAZOLOPYRIDINE DERIVATIVES FOR THE TREATMENT OF CANCER<br/>[FR] DÉRIVÉS DE PYRAZOLOPYRIDINE POUR LE TRAITEMENT DU CANCER
申请人:GENENTECH INC
公开号:WO2017205538A1
公开(公告)日:2017-11-30
The present invention relates to a compound formula (I): and to salts thereof, wherein R1, R2X, and Y have any of the values defined herein, and compositions and uses thereof. The compounds are useful as inhibitors of CBP and/or EP300. Also included are pharmaceutical compositions comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof, and methods of using such compounds and salts in the treatment of various CBP and/or EP300-mediated disorders such as cancer, inflammatory disorders and autoimmune diseases.
Iron(III)-Catalyzed Cascade Reaction between Nitroolefins and 2-Aminopyridines: Synthesis of Imidazo[1,2-<i>a</i>]pyridines and Easy Access towards Zolimidine
The iron(III)‐catalyzed one‐pot cascadereactionbetweennitroolefins and 2‐aminopyridines has been demonstrated for the synthesis of imidazo[1,2‐a]pyridines by exploiting the bielectrophilic nature of nitroolefins. This methodology could be successfully applicable for the synthesis of zolimidine, a useful drug for the treatment of peptic ulcer. The reaction proceeds through Michael addition followed
通过利用硝基烯烃的双亲电子性质,已证明了铁(III)催化的硝基烯烃与2-氨基吡啶之间的一锅级联反应可用于合成咪唑并[1,2- a ]吡啶。该方法学可以成功地用于合成唑来咪定,这是一种治疗消化性溃疡的有用药物。反应通过迈克尔加成进行,随后进行分子内环化和原位脱硝。
Iodine-Catalyzed Cross Dehydrogenative Coupling Reaction: A Regioselective Sulfenylation of Imidazoheterocycles Using Dimethyl Sulfoxide as an Oxidant
作者:Yogesh Siddaraju、Kandikere Ramaiah Prabhu
DOI:10.1021/acs.joc.6b01487
日期:2016.9.2
A regioselective formation of C–S bonds has been achieved using a cross dehydrogenative coupling (CDC) protocol using iodine as a catalyst and dimethylsulfoxide as an oxidant under green chemistry conditions. This strategy employs the reaction of easily available heterocyclic thiols or thiones with imidazoheterocycles. This protocol provides an efficient, mild, and inexpensive method for sulfenylation