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