5-(Difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Hydroxy-5-(trifluoromethoxy)pyridine-2-sulfonamide
4-Hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonamide