Abstract
A new clerodane diterpenoid 16-hydroxycleroda-13-ene-15,16-olide-3-one (1) was isolated from the bark of Polyalthia longifolia var. pendula, along with 23 known compounds and phytosteroids. Among these compounds, 5-7, 10, and 24 were obtained for the first time from the family Annonaceae. The structures of the isolated compounds were determined by mass and spectroscopic analysis. The clerodane diterpenoids, 2-4, showed significant cytotoxicity towards Hep G2 and Hep 3B hepatoma cell lines. Furthermore, compound 5 exhibited potent anti-inflammatory activity towards formyl-L-methionyl-L-leucyl-L-phenylalanine/ cytochalasin B (fMLP/CB)-induced superoxide generation by neutrophils with IC50 = 0.60 ± 0.09 μg/mL.
| Original language | English |
|---|---|
| Pages (from-to) | 1344-1347 |
| Number of pages | 4 |
| Journal | Planta Medica |
| Volume | 72 |
| Issue number | 14 |
| DOIs | |
| State | Published - 11 2006 |
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