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