5-(Difluoromethyl)-2-methyl-3-(trifluoromethyl)pyridine-6-carboxaldehyde
6-(Difluoromethyl)-3-methyl-2-(trifluoromethyl)pyridine-4-carboxaldehyde
4-(Difluoromethyl)-5-methyl-2-(trifluoromethyl)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-5-methyl-4-(trifluoromethyl)pyridine-3-carboxaldehyde