4-(Difluoromethyl)-5-methoxy-2-methylpyridine-3-carboxaldehyde
4-(Difluoromethyl)-2-methoxy-5-methylpyridine-3-carboxaldehyde
2-(Difluoromethyl)-3-iodo-6-(trifluoromethyl)pyridine-4-carboxaldehyde
3-(Difluoromethyl)-2-methoxy-6-methylpyridine-5-carboxaldehyde