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
Methyl 3-(difluoromethyl)-6-methoxy-2-methylpyridine-5-acetate