4-Amino-6-nitro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Amino-2-nitro-5-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Amino-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-methanol
2-Amino-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-methanol