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