Ethyl 2-(aminomethyl)-3-bromo-4-(difluoromethyl)pyridine-6-carboxylate
3-Chloro-4-(difluoromethyl)-5-fluoropyridine-2-carboxylic acid
3-Chloro-4-(difluoromethyl)-2-fluoropyridine-5-carboxylic acid
3-Chloro-2-(difluoromethyl)-6-fluoropyridine-4-carboxylic acid