Ethyl 3-(fluoromethyl)-5-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylate
4-(Difluoromethyl)-6-nitro-3-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 3-(fluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-6-acetate
4-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-5-acetic acid