2-Cyano-5-(difluoromethyl)-4-methoxypyridine
4-(Chloromethyl)-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Cyano-4-(difluoromethyl)-5-methoxypyridine
4-(Chloromethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxaldehyde