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