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