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