Carbazole alkaloids from Clausena hainanensis with their potential antiproliferative activities.


Five new carbazole alkaloids, clausehainanines A-E (1-5), together with seven known analogues (6-12) were isolated from the stems and leaves of C. hainanensis. Their structures were elucidated by extensive spectroscopic methods. Among them, compounds 1-5 were an unusual type of carbazole alkaloids, possessing diverse isopentenyl derivatives as substituents… (More)
DOI: 10.1016/j.bioorg.2017.12.016