New diterpenoid alkaloids from Aconitum liangshanicum

摘要

One new C_(19)-diterpenoid alkaloid, named liangshantine (1), and three new C_(20)-diterpenoid alkaloids, liangshansines A-C (2 - 4, resp.), as well as eight known compounds, were isolated from the roots of Aconitum liangshanicum. The structures of these new alkaloids were elucidated by spectroscopic methods.