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