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