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