6-(Chloromethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Difluoromethyl)-2-methoxy-5-nitropyridine
3-(Difluoromethyl)-5-methoxy-4-nitropyridine
2-(Chloromethyl)-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxaldehyde