3-(Chloromethyl)-4-hydroxy-6-methyl-2-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-5-hydroxy-2-methyl-3-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-3-hydroxy-5-methyl-2-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-5-hydroxy-4-methyl-2-(trifluoromethoxy)pyridine