Ethyl 3-(difluoromethyl)-4-hydroxy-5-(trifluoromethyl)pyridine-2-carboxylate
6-(Aminomethyl)-3-(difluoromethyl)-4-iodo-2-methylpyridine
Ethyl 3-(difluoromethyl)-2-hydroxy-5-(trifluoromethyl)pyridine-4-carboxylate
3-(Bromomethyl)-6-(difluoromethyl)-2-iodo-5-methylpyridine