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