3-(Chloromethyl)-5-(difluoromethyl)-2-methoxypyridine-4-carboxaldehyde
5-(Chloromethyl)-4-(difluoromethyl)-3-methoxypyridine-2-carboxaldehyde
4-(4-Hydroxy-2-methoxybenzoyl)pyridine
3-(Chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-5-carboxaldehyde