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