Ethyl 2-bromo-4-(difluoromethyl)pyridine-5-carboxylate
Ethyl 6-(aminomethyl)-2-(difluoromethyl)pyridine-3-acetate
Ethyl 2-bromo-3-(difluoromethyl)pyridine-5-carboxylate
2-(Chloromethyl)-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid