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