Pd/Cu-cocatalyzed reigoselective arylation of thiazole derivatives at 2-position under ligand-free conditions
作者:Jian Gu、Chun Cai
DOI:10.1039/c5ra08703a
日期:——
regioselective arylation of thiazole derivatives at the 2-position via palladium- and copper-catalyzed C–H bond activation underligand-freeconditions has been developed. The reaction proceeds smoothly with 1% palladium catalyst in the presence of 20% Cu(TFA)2 to furnish the desired products. The direct C–H arylation and no ligand made this method synthetically useful for the arylation of thiazoles
AMIDE-SUBSTITUTED HETEROCYCLIC COMPOUNDS USEFUL AS MODULATORS OF IL-12, IL-23 AND/OR IFN ALPHA RESPONSES
申请人:Bristol-Myers Squibb Company
公开号:EP3495358A1
公开(公告)日:2019-06-12
Compounds having the following formula I:
or a stereoisomer or pharmaceutically-acceptable salt thereof, where R1, R2, R3, R4, and R5 are as defined herein, are useful in the modulation of IL-12, IL-23 and/or IFNα, by acting on Tyk-2 to cause signal transduction inhibition.