| Abstract
| - Two new norditerpenoid alkaloids, leucostines A (1) andB (2), and a new diterpenoid alkaloid,11-acetyllepenine (6), have been isolated from the root ofAconitum leucostomum. Theirstructures were elucidated on the basis of spectral data and chemicalevidence. Four knownalkaloids, delsoline (3), delcosine (4), lepenine(7), and songorine (8), were also isolatedandidentified from this plant for the first time.
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