Ethyl 5-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-iodo-6-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-iodo-5-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-(difluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-3-carboxylate