4-Amino-2-(chloromethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-(difluoromethyl)-3-hydroxy-6-iodopyridine
2-Chloro-3-methyl-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Amino-5-(difluoromethyl)-6-nitropyridine-3-carboxylic acid