3-Chloro-6-fluoro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
5-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-sulfonyl chloride
Ethyl 2-cyano-3-(difluoromethyl)-6-methylpyridine-5-carboxylate
6-(Difluoromethyl)-2-fluoro-3-methyl-4-(trifluoromethoxy)pyridine