A General, Multimetallic Cross-Ullmann Biheteroaryl Synthesis from Heteroaryl Halides and Heteroaryl Triflates
作者:Kai Kang、Nathan L. Loud、Tarah A. DiBenedetto、Daniel J. Weix
DOI:10.1021/jacs.1c10907
日期:2021.12.29
medicine and materials science, the synthesis of biheteroaryls by cross-coupling remains challenging. We describe here a new, general approach to biheteroaryls: the Ni- and Pd-catalyzed multimetallic cross-Ullmann coupling of heteroaryl halides with triflates. An array of 5-membered, 6-membered, and fused heteroaryl bromides and chlorides, as well as aryltriflates derived from heterocyclic phenols,
The photochemical arylation of pyrimidines and pyrazines proceeds smoothly under moderate UVA irradiation and allows us to obtain high-value biaryl compounds through radical intermediates.
[EN] INHIBITORS OF HISTONE DEACETYLASE<br/>[FR] INHIBITEURS D'HISTONE DÉSACÉTYLASE
申请人:METHYLGENE INC
公开号:WO2005092899A1
公开(公告)日:2005-10-06
The invention relates to a series of compounds useful for inhibiting histone deacetylase (HDAC) enzymatic activity. The invention also provides a method for inhibiting histone descetylase in a cell using said compounds as well as a method for treating cell proliferative diseases and conditions using said HDAC inhibitors. Further, the invention provides pharmaceutical compositions comprising the HDAC inhibiting compounds and a pharmaceutically acceptable carrier.
moieties was provided through cross-coupling reactions of aryl bromides or benzyl halides with heteroarylaluminum reagents in the presence of Pd(OAc)2 and (o-tolyl)3P. The coupling reaction also worked efficiently with heteroaryl bromides affording series of heterobiaryl compounds. The reaction of phenylbromide with in situ prepared 3-pyridyl aluminum was demonstrated to afford the product 8a in high yield
Site-Selective Switching Strategies to Functionalize Polyazines
作者:Ryan D. Dolewski、Patrick J. Fricke、Andrew McNally
DOI:10.1021/jacs.8b04530
日期:2018.6.27
compounds contain multiple pyridines and diazines. Developing site-selective reactions where specific C-H bonds can be transformed in polyazine structures would enable rapid access to valuable derivatives. We present a study that addresses this challenge by selectively installing a phosphonium ion as a versatile functional handle. Inherent factors that control site-selectivity are described along with