plaunol B 、 乙酸酐 以
吡啶 为溶剂,
以47 mg的产率得到plaunol B (2) monoacetate
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.