Ethyl 2-(difluoromethyl)-3-methoxy-6-nitropyridine-4-acetate
3-(Difluoromethyl)-4-methoxy-2-nitropyridine-5-carboxaldehyde
6-(Difluoromethyl)-4-methoxy-3-nitropyridine-2-carboxaldehyde
Methyl 6-(chloromethyl)-3-(difluoromethyl)-4-methoxypyridine-2-acetate