2-Amino-3-nitro-4-(trifluoromethoxy)pyridine-5-sulfonamide
2-Bromo-6-(fluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine
5-Amino-2-(chloromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Bromo-5-(fluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine