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