Methyl 6-(bromomethyl)-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylate
5-(Bromomethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid
Ethyl 4-bromo-2-(difluoromethyl)pyridine-5-acetate
Ethyl 3-bromo-5-(difluoromethyl)pyridine-4-acetate