Ni-Catalyzed Alkenylation of Triazolopyridines: Synthesis of 2,6-Disubstituted Pyridines
作者:Sheng Liu、James Sawicki、Tom G. Driver
DOI:10.1021/ol301606y
日期:2012.7.20
A synthetic strategy to access 2,6-disubstitutedpyridines from triazolopyridines through a regioselective nickel-catalyzed alkenylation reaction of the C7–H bond is described. The N2 fragment embedded in the resulting C–H functionalized triazolopyridine can be readily excised using acidic or oxidative conditions to unmask the pyridine.
Compounds disclosed herein including compounds of formula I′:
and salts thereof are provided. Pharmaceutical compositions comprising compounds disclosed herein, processes for preparing compounds disclosed herein, intermediates useful for preparing compounds disclosed herein and therapeutic methods for treating an HIV infection using compounds disclosed herein are also provided.
allowing a Csp 3-N bond formation through coupling of pyridotriazoles and weakly nucleophilicanilines has been developed. This sustainable reaction shows high tolerance towards functional groups (ketones, free alcohols) leading to 2-picolylamines derivatives. The key to our success is the use of a catalytic amount of TBAB and water as a co-solvent leading to the formation of pyridyl-alkylamines derivatives