Ethyl 3-(difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 5-(difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylate
3-(Difluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-4-methanol
Ethyl 3-(bromomethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-6-carboxylate