2-Cyano-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Fluoro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-Chloro-5-methyl-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 6-(chloromethyl)-2-(difluoromethyl)-3-methylpyridine-4-acetate