Ethyl 3-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetate
Methyl 5-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 2-(difluoromethyl)-6-methoxypyridine-4-carboxylate
Ethyl 2-(difluoromethyl)-4-methoxypyridine-5-carboxylate