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