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