生物活性: 3, 4-seco-4 (23),20(29) -Lupadiene-3,28-dioic acid (Compound 5) is a triterpenoid compound. 3, 4-seco-4 (23),20(29)-Lupadiene-3,28-dioic acid has a strong inhibitory effect on the production of superoxide anions, and the inhibitory rate is 86.9±2.8% at 1 μM.