2-Hydroxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-carboxaldehyde
3-(Fluoromethyl)-5-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-Hydroxy-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-carboxaldehyde
5-(Fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine