5-Cyano-2-(difluoromethyl)pyridine-4-sulfonyl chloride
4-Cyano-2-(difluoromethyl)-5-methoxypyridine
2-(Chloromethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 2-(chloromethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetate