Ethyl 2-(chloromethyl)-6-(difluoromethyl)pyridine-3-carboxylate
Methyl 2,4-diamino-6-(difluoromethyl)pyridine-3-carboxylate
Ethyl 2-(chloromethyl)-5-(difluoromethyl)pyridine-3-carboxylate
Ethyl 2-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxylate