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