Methyl 3-fluoro-2-nitro-4-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-fluoro-6-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate
2-Cyano-4-(difluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine
Methyl 2-fluoro-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate