2,6-Bis(trifluoromethyl)pyridine-4-carboxylic acid → N-(2,2-Difluoro-ethyl)-N-[4-(2-fluoro-phenyl)-pyridin-3-yl]-2,6-bis-trifluoromethyl-isonicotinamide

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Reaction Steps

The title compound was prepared in analogy to example 90, from (2,2-difluoro-ethyl)-[4-(2-fluoro-phenyl)-pyridin-3-yl]-amine and 2,6-bis(trifluoromethyl)isonicotinic acid (Key Organics Ltd.) after a reaction time of 68 hours. The compound was purified by silica gel chromatography on a 10 g column using a MPLC system eluting with a gradient of n-heptane:EtOAc (100:0 to 50:50). Light brown solid (44%). MS (ESI): m/z=494.09 [M+H]+.

Provenance & Evidence