Methyl 5-(difluoromethyl)pyridine-2-carboxylate
3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-(Difluoromethyl)-2-methoxypyridine-6-acetonitrile
3-(Chloromethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride