Ethyl 3-(chloromethyl)-4-(difluoromethyl)-5-methoxypyridine-2-acetate
Ethyl 3-(chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-5-acetate
Ethyl 3-(chloromethyl)-2-(difluoromethyl)-6-methoxypyridine-4-acetate
Ethyl 2-(difluoromethyl)-3-methoxy-4-(trifluoromethyl)pyridine-6-carboxylate