Three new xanthones from Garcinia xanthochymus.
To study xanthones from the barks of Garcinia xanthochymus, the constituents were isolated by normal-phase and reverse-phase silica gel column chromatography from the EtOAc extract. Their structures were elucidated by spectral analysis. Three new xanthones were purified and identified as 1,2,5-trihydroxy-6-methoxyxanthone (1), 1,4,6-trihydroxy-5-methoxyxanthone (2), 1,2,7-trihydroxy-4-(1,1-dimethylallyl) xanthone (3).
Zhong
Fang-fang
FF
Laboratory for Natural Product Chemistry, College of Life Sciences, South Central University for Nationalities, Wuhan 430074, China.
Chen
Yu
Y
Song
Fa-jun
FJ
Yang
Guang-zhong
GZ
D029760:Garcinia / Q000737:chemistry*; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D044004:Xanthones / Q000737:chemistry* / Q000302:isolation & purification
C544006:1,2,5-trihydroxy-6-methoxyxanthone; C544008:1,2,7-trihydroxy-4-(1,1-dimethylallyl)xanthone; C544007:1,4,6-trihydroxy-5-methoxyxanthone; D044004:Xanthones