(R)-4-[3β-hydroxy-28-norlup-20(29)-en-17β-yl]-γ-butyrolactone

桦木醇

3-(三氯锡)丙酸甲酯

3,3'(二氯锡亚基)二(甲基丙酸酯)

6-溴-4-二氢色原酮