4-Hydroxy-2-methyl-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-Hydroxy-6-methyl-3-(trifluoromethoxy)pyridine-4-acetic acid
3-Hydroxy-5-methyl-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
6-Hydroxy-3-methyl-4-(trifluoromethoxy)pyridine-2-acetic acid