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
Methyl 5-amino-4-(chloromethyl)-2-(difluoromethyl)pyridine-3-carboxylate