Ethyl 3-(bromomethyl)-2-cyano-5-(trifluoromethoxy)pyridine-4-carboxylate
3-(Chloromethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Cyano-4-(difluoromethyl)-2-hydroxypyridine-6-carboxylic acid
4-Chloro-5-methyl-3-nitro-2-(trifluoromethoxy)pyridine