3-Bromo-6-nitro-2-(trifluoromethoxy)pyridine-4-acetonitrile
4-Cyano-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Ethyl 5-chloro-4-(difluoromethyl)-2-fluoropyridine-3-acetate
6-(Chloromethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-carboxylic acid