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