Diterpenoids from Rabdosia nervosa

<正> Six ent-kaurene type diterpenoids have been isolated from the leaves of Rabdosia nervosa.Among them, ganervosin A and B were new compounds, the structures of which were elucidated as 1 and2 respectively by spectral and chemical methods. The other four were identified as odonicin (3),novelrabdosin (4), nodosin (5) and shikokianal acetate (6), Compounds 5 and 6 were for the first timeisolated from this herb.