established that a cyclopentadienyl RhIII complex with two phenyl groups and a pendant amide moiety catalyzes the formal Lossen rearrangement/[3+2] annulation cascade of N‐pivaloyl benzamides and acrylamides with alkynes leading to substituted indoles and pyrroles. Mechanistic studies revealed that this cascade reaction proceeds via not the Lossen rearrangement to form anilides or enamides but C−H bond cleavage
Enantioselective Aminohydroxylation of Styrenyl Olefins Catalyzed by an Engineered Hemoprotein
作者:Inha Cho、Christopher K. Prier、Zhi‐Jun Jia、Ruijie K. Zhang、Tamás Görbe、Frances H. Arnold
DOI:10.1002/anie.201812968
日期:2019.3.4
Chiral 1,2‐aminoalcohols are widely represented in biologically active compounds from neurotransmitters to antivirals. While many synthetic methods have been developed for accessing aminoalcohols, the direct aminohydroxylation of alkenes to unprotected, enantioenriched aminoalcohols remains a challenge. Using directed evolution, we have engineered a hemoprotein biocatalyst based on a thermostable
[EN] AMINOPYRAZINE COMPOUNDS AS HPK1 INHIBITOR AND THE USE THEREOF<br/>[FR] COMPOSÉS D'AMINOPYRAZINE UTILISÉS EN TANT QU'INHIBITEURS DE HPK1 ET LEUR UTILISATION
申请人:BEIGENE LTD
公开号:WO2021032148A1
公开(公告)日:2021-02-25
Disclosed herein is an aminopyrazine compound of Formula (I), or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and pharmaceutical compositions comprising thereof. Also disclosed is a method of treating HPK1 related disorders or diseases by using the compound disclosed herein.
Efficient Synthesis of Spirooxindole Pyrrolones by a Rhodium(III)‐Catalyzed C−H Activation/Carbene Insertion/Lossen Rearrangement Sequence
作者:Biao Ma、Peng Wu、Xing Wang、Zhengyu Wang、Hai‐Xia Lin、Hui‐Xiong Dai
DOI:10.1002/anie.201906589
日期:2019.9.16
A rhodium(III)-catalyzed domino annulation of simple olefins with diazo oxindoles to give spirooxindole pyrrolone products is described. This reaction can be formally viewed as the result of an anomalous tandem C-H activation, carbene insertion, Lossen rearrangement, and a nucleophilic addition process. The potential utility of this reaction was further demonstrated by the late-stage diversification
Synthesis and Analysis of Natural‐Product‐Like Macrocycles by Tandem Oxidation/Oxa‐Conjugate Addition Reactions
作者:Hyunji Lee、Kayla Sylvester、Emily R. Derbyshire、Jiyong Hong
DOI:10.1002/chem.201900620
日期:2019.5.7
traditional small‐molecule drug discovery programs focus on a relatively narrow range of chemical space, most human proteins are viewed as unreachable targets. Consequently, there is a strong interest in expanding the chemical space in drug discovery beyond traditional small molecules. Here, a strategy for the preparation of a broad natural‐product‐like macrocyclic library by using the tandem allylic