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