Methyl 4-(difluoromethyl)pyridine-3-carboxylate
Methyl 3-(bromomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-(difluoromethyl)pyridine-4-carboxylate
5-(Bromomethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carbonyl chloride