5,5′-Oxybis(1,3,7-trihydroxy-9<i>H</i>-xanthen-9-one): A New Xanthone from the Stem Bark of <i>Garcinia porrecta</i> (Clusiaceae)
oleh: Ayu N. Safitri, Nurlelasari, Tri Mayanti, Darwati, Unang Supratman
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-08-01 |
Deskripsi
A new polyoxygenated dimer-type xanthone, namely 5,5′-oxybis(1,3,7-trihydroxy-9<i>H</i>-xanthen-9-one (<b>1</b>), has been isolated from the stem bark of <i>Garcinia porrecta</i>. The structure of <b>1</b> was determined based on spectroscopic data, including 1D and 2D-NMR as well as high resolution mass spectroscopy analysis.