Palladium-catalyzed cross-coupling of benzylzinc reagents with 2-bromo-3,3,3-trifluoropropene
摘要:
alpha-Trifluoromethyl alkenes can be used as peptide isosteres, moreover, the pre-installed vinyl group make it possible that transformation to diverse fluorine-containing unities. However, the cross-coupling of benzyl group with alpha-trifluoromethyl alkenes has yet to be developed. In this report, we describe a general method for the cross-coupling of benzylzinc reagents with 2-bromo-3,3,3-trifluoropropene (BTP) to afford diverse alpha-trifluoromethylalkene derivatives by using Pd(TFA)(2) as catalyst. This method takes advantage of cheap industrial available fluorine building blocks and easily prepared benzylzinc reagents to generate alpha-trifluoromethylalkene derivatives, which features with mild reaction conditions, wide substrate scope and feasibility of product transformations.
Disclosed herein is the first general chemo- and site-selective alkylation of C-Br bonds in the presence of COTf, C-Cl and other potentially reactive functional groups, using the air-, moisture-, and thermally stable dinuclear PdI catalyst, [Pd(μ-I)PtBu3 ]2 . The bromo-selectivity is independent of the substrate and the relative positioning of the competing reaction sites, and as such fully predictable
[EN] PYRROLIDINE GPR40 MODULATORS<br/>[FR] MODULATEURS PYRROLIDINES DE GPR40
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2014078609A1
公开(公告)日:2014-05-22
The present invention provides compounds of Formula (I): or a stereoisomer, or a pharmaceutically acceptable salt thereof, wherein all of the variables are as defined herein. These compounds are GPR40 G protein-coupled receptor modulators which may be used as medicaments.
[EN] PYRIDYL DERIVATIVES AS BROMODOMAIN INHIBITORS<br/>[FR] DÉRIVÉS DE PYRIDYLE À UTILISER EN TANT QU'INHIBITEURS DE BROMODOMAINE
申请人:GLAXOSMITHKLINE INTELLECTUAL PROPERTY (NO 2) LTD
公开号:WO2017174621A1
公开(公告)日:2017-10-12
The present invention relates to compounds of formula (I) and salts thereof, pharmaceutical compositions containing such compounds and to their use in therapy.
本发明涉及式(I)的化合物及其盐,含有这种化合物的药物组合物,以及它们在治疗中的应用。
[EN] PYRIDINE DICARBOXAMIDE DERIVATIVES AS BROMODOMAIN INHIBITORS<br/>[FR] DÉRIVÉS DE PYRIDINE DICARBOXAMIDE UTILISÉS COMME INHIBITEURS DE BROMODOMAINE
申请人:GLAXOSMITHKLINE INTELLECTUAL PROPERTY (NO 2) LTD
公开号:WO2017202742A1
公开(公告)日:2017-11-30
The present invention relates to compounds of formula (I) and salts thereof, pharmaceutical compositions containing such compounds and to their use in therapy.