| Title | Three New Caged Prenylxanthones from Garcinia bracteata |
| Author | Na, Zhi |
| Publication | HELVETICA CHIMICA ACTA |
| Year | 2010 |
| Volume | 93 |
| Issue | 5 |
| Corresponding Author | Na, Z |
| Abstract | Three new caged prenylxanthones (xanthone = 9H-xanthen-9-one), named neobractatin (1), 3-O-methylneobractatin (2), and 3-O-methylbractatin (3), along with eight known compounds, were isolated from the twig of Garcinia bracteata. The structures of the new compounds were elucidated on the basis of 1D- and 2D-NMR experiments, including HMBC, HSQC, (1)H,(1)H-COSY, and ROESY, as well as HR-MS analysis. |
