4-(Difluoromethyl)-3-methoxy-6-(trifluoromethyl)pyridine-2-carboxaldehyde
4-(Difluoromethyl)-3-methoxy-5-(trifluoromethyl)pyridine-2-carboxaldehyde
4-(Difluoromethyl)-3-methoxy-2-(trifluoromethyl)pyridine-5-carboxaldehyde
4-(Bromomethyl)-2-(difluoromethyl)-5-methoxy-3-nitropyridine