Five new diterpenoids, effusanin A, B, C, D and E with antibacterial activity were isolated from the stem and leaves of Rabdosia effusa and their structures were deduced from chemical and spectral findings.
The structures of trichorabdals F and H, and trichorabdal G acetate isolated from Rabdosia trichocapa were determined. It is proposed from the results of structure elucidation of trichorabdal F that the structure of shikodonin should be revised.
确定了从三疣梭子蟹中分离出来的三疣梭子蟹醛 F 和 H 以及三疣梭子蟹醛 G 乙酸酯的结构。根据毛果芸香碱 F 的结构阐明结果,建议对莽草素的结构进行修订。