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