3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-sulfonyl chloride
2-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-4-sulfonyl chloride
5-Iodo-2-(methylthio)-3-(trifluoromethyl)pyridine
Ethyl 4-(difluoromethyl)-3-fluoro-2-methylpyridine-6-carboxylate