Sesquiterpenoids from the seeds of Sarcandra glabra and the potential anti-inflammatory effects.

Five new sesquiterpenoids, including two linderanes (1-2) and three eudesmanes (3-5) were isolated from the seeds of Sarcandra glabra. Their structures and relative configurations were established by spectroscopic data analysis. 1 was a rare linderane derivative having an 18-membered triester ring which is a common characteristic in linderane dimers. Compounds 1-5 were investigated for their inhibitory effects on NO production in LPS-induced macrophages and 1 showed moderate bioactivity.