3-Cyano-5-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
Methyl 6-cyano-3-methoxy-4-(trifluoromethoxy)pyridine-2-acetate
2-Cyano-3-hydroxy-5-nitro-6-(trifluoromethoxy)pyridine
3-Cyano-4-(difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine