Ethyl 2-(difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 3-iodo-4-methyl-5-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 4-iodo-3-nitro-5-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 4-iodo-6-nitro-2-(trifluoromethoxy)pyridine-3-carboxylate