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