Ethyl 2-(difluoromethyl)-6-fluoro-5-(trifluoromethyl)pyridine-3-acetate
4-(Difluoromethyl)-2-hydroxy-5-methyl-3-(trifluoromethyl)pyridine
2-Fluoro-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-(Difluoromethyl)-5-methoxy-3-nitropyridine-4-sulfonyl chloride