A prenylated xanthone and antiproliferative compounds from leaves of Pentadesma butyracea

- Isolation and structural elucidation of a new xanthone, butyraxanthone F (1).
- First report of 2-hydroxy-2,3-dihydrosqualene (17) from a natural source.
- Antiproliferative activity of globuxanthone and 30-epi-cambogin against three cancer cell lines.