Ethyl 2-cyano-6-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
2-(Difluoromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
Ethyl 6-cyano-3-nitro-4-(trifluoromethoxy)pyridine-2-carboxylate
3-(Difluoromethyl)-6-fluoro-4-(trifluoromethoxy)pyridine-2-methanol