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