Methyl 4-cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
3-Fluoro-6-hydroxy-2-nitro-4-(trifluoromethoxy)pyridine
Methyl 3-cyano-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
5-Fluoro-2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine