2-Amino-6-nitro-4-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Amino-3-iodo-6-(trifluoromethoxy)pyridine-4-acetic acid
5-Amino-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetonitrile
2-Amino-5-nitro-6-(trifluoromethoxy)pyridine-3-carboxylic acid