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