Ethyl 3-methoxy-5-nitro-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 5-methoxy-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-(difluoromethyl)-4-iodo-2-(trifluoromethoxy)pyridine-6-acetate
4-(Bromomethyl)-2-iodo-6-(trifluoromethoxy)pyridine-3-acetic acid