Cytotoxic polyisoprenyl benzophenonoids from Garcinia subelliptica
- J Nat Prod. 2010 Apr 23;73(4):557-62. doi: 10.1021/np900620y.
- 1. National Research Institute of Chinese Medicine, Taipei 112, Taiwan, Republic of China.
Six new polyisoprenyl benzophenonoids, (+/-)-garcinialiptone A (1, 2), garcinialiptone B (3), (-)-cycloxanthochymol (4), garcinialiptone C (5), and garcinialiptone D (6), along with three known compounds, xanthochymol (7), isoxanthochymol (8), and cycloxanthochymol (9), were isolated from the fruits of Garcinia subelliptica. The structures of 1-6 were elucidated by spectroscopic analysis. Biological evaluation showed that all compounds 1-9 exhibited cytotoxic activity against a small panel of human tumor cell lines (A549, DU145, KB, vincristine-resistant KB).