plaunol B 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 55.0h,
以37 mg的产率得到3,4-dihydroplaunol B
参考文献:
名称:
Novel diterpenelactones with anti-peptic ulcer activity from Croton sublyratus.
摘要:
Five novel furanoditerpenes of the ent-clerodane type, plaunol A (1), B (2), C (3), D (4) and E (5), were isolated from a fraction of Croton sublyratus KURZ extract with potent anti-Shay ulcer activity. Their absolute structures were determined from the spectral data and by chemical correlations.