Brønsted Acid Catalyzed Dearomatization by Intramolecular Hydroalkoxylation/Claisen Rearrangement: Diastereo‐ and Enantioselective Synthesis of Spirolactams
作者:Peng‐Fei Chen、Bo Zhou、Peng Wu、Binju Wang、Long‐Wu Ye
DOI:10.1002/anie.202113464
日期:2021.12.20
A Brønstedacidcatalyzedintramolecular hydroalkoxylation/Claisen rearrangement is disclosed that involves an unexpected dearomatization of nonactivated arenes and heteroaromatic compounds and allows the practical and atom-economic synthesis of various valuable spirolactams. Moreover, the asymmetric version of this tandem cyclization is also achieved via kinetic resolution by chiral phosphoric acid
[EN] MODULATORS OF CHEMOKINE RECEPTORS<br/>[FR] MODULATEURS DES RÉCEPTEURS DES CHIMIOKINES
申请人:CHEMOCENTRYX INC
公开号:WO2017087607A1
公开(公告)日:2017-05-26
Compounds are provided as chemokine inhibitors having the structure: Formula (A).
提供的化合物是具有结构的趋化因子抑制剂:化学式(A)。
[EN] INHIBITORS OF CXCR2<br/>[FR] INHIBITEURS DE CXCR2
申请人:CHEMOCENTRYX INC
公开号:WO2017087610A1
公开(公告)日:2017-05-26
Compounds are provided as inhibitors of CXCR2, having the structure (I).
提供作为CXCR2抑制剂的化合物,其结构为(I)。
Traceless Directing Group Assisted Cobalt-Catalyzed C−H Carbonylation of Benzylamines
作者:Fei Ling、Chongren Ai、Yaping Lv、Weihui Zhong
DOI:10.1002/adsc.201700780
日期:2017.11.10
The first example of cobalt‐catalyzed C(sp2)−H carbonylation of benzylamines using a traceless directing group is reported, which was successfully applied to the synthesis of N−unprotected iso‐indolinones through direct C−H/N−H bonds activation. This protocol tolerates a variety of functional groups and provides a facile and efficient method for the formal synthesis of (+)‐garenoxacin.
报道了使用无痕导向基团的钴催化苄胺的C(sp 2)-H羰基羰基化的第一个实例,该实例已成功地用于通过直接CH / H / NH键活化而合成N-未保护的异吲哚啉酮。该方案可耐受多种官能团,并为(+)-加仑沙星的正式合成提供了一种简便而有效的方法。
Palladium-Catalyzed Direct C–H Carbonylation of Free Primary Benzylamines: A Synthesis of Benzolactams
作者:Chunhui Zhang、Yongzheng Ding、Yuzhen Gao、Shangda Li、Gang Li
DOI:10.1021/acs.orglett.8b00786
日期:2018.5.4
A protocol for palladium-catalyzed C–H carbonylation of readily available free primarybenzylamines using NH2 as the chelating group under an atmospheric pressure of CO has been achieved, providing a general, atom- and step-economic approach to benzolactams, an important structural motif found in many biologically active compounds. Application of this new method is also exemplified in the concise syntheses