Room-Temperature Suzuki-Miyaura Coupling of Heteroaryl Chlorides and Tosylates
作者:Junfeng Yang、Sijia Liu、Jian-Feng Zheng、Jianrong Steve Zhou
DOI:10.1002/ejoc.201200918
日期:2012.11
Suzuki–Miyauracoupling of heteroaryls is an important method for the preparation of compound libraries for medicinal chemistry and materials research. Although many catalysts have been developed, none of them have been generally applicable to the coupling reactions of heteroarylchlorides and tosylates at room temperature. We discovered that a catalyst combination of Pd(OAc)2 and XPhos (2-dicyclohexylphosphanyl-2′
Selective Kumada biaryl cross-coupling reaction enabled by an iron(iii) alkoxide–N-heterocyclic carbene catalyst system
作者:Yi-Yuan Chua、Hung A. Duong
DOI:10.1039/c4cc02930e
日期:——
A catalyst system comprising Fe2(OtBu)6 and an N-heterocyclic carbene ligand enables efficient syntheses of (hetero)biaryls from the reactions of aryl Grignard reagents with a diverse spectrum of (hetero)aryl chlorides. Amongst the alkoxide and amide counterions investigated, tert-butoxide was the most effective in inhibiting the homocoupling of arylmagnesiums.
[EN] ORAL COMPLEMENT FACTOR D INHIBITORS<br/>[FR] INHIBITEURS ORAUX DU FACTEUR D DU COMPLÉMENT
申请人:BIOCRYST PHARM INC
公开号:WO2021072198A1
公开(公告)日:2021-04-15
Disclosed are compounds of formula (I), and pharmaceutically acceptable salts thereof, which are inhibitors of the complement system. Also provided are pharmaceutical compositions comprising such a compound, and methods of using the compounds and compositions in the treatment or prevention of a disease or condition characterized by aberrant complement system activity.
[EN] SUBSTITUTED BENZOFURANYL AND BENZOXAZOLYL COMPOUNDS AND USES THEREOF<br/>[FR] BENZOFURANYLES ET BENZOXAZOLYLES SUBSTITUÉS ET LEURS UTILISATIONS
申请人:KARYOPHARM THERAPEUTICS INC
公开号:WO2015003166A1
公开(公告)日:2015-01-08
The invention generally relates to substituted benzofuranyl and substituted benzoxazolyl compounds, and more particularly to a compound represented by Structural Formula (A) : or a pharmaceutically acceptable salt thereof, wherein the variables are as defined and described herein. The invention also includes the synthesis and use of a compound of Structural Formula (A), or a pharmaceutically acceptable salt or composition thereof, e.g., in the treatment of cancer (e.g., mantle cell lymphoma), and other diseases and disorders.
A polystyrene‐cross‐linking bisphosphine ligand PS‐DPPBz was used for Ni‐catalyzedcross‐coupling with organolithiums. A bench‐stable precatalyst [NiCl2(PS‐DPPBz)] enabled efficient coupling reactions between aryl chlorides and alkyllithiums. The heterogeneous Ni system showed good reusability.