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