[Xanthones from leaves of Calophyllum inophyllum Linn].
To study the xanthones from the leaves of Calophyllum inophyllum Linn., several chromatography methods were employed to isolate the constituents. Investigation on the CHCl3 extract led to the isolation of a new xanthone named inophyxanthone A (1) and four known compounds, which were pancixanthone A (2), gerontoxanthone B (3), jacareubin (4) and pyranojacareubin (5). Among them, compound 2 was obtained from this plant firstly, and compound 3 was obtained for the first time from this genus. The structure of inophyxanthone A (1) was identified as 1, 3, 5-trihydroxy-2-(1, 1-dimethylallyl)xanthone by spectral analysis.
Li
Yuan
Y
School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
Li
Zhan-Lin
ZL
Liu
Ming-Sheng
MS
Li
Dan-Yi
DY
Zhang
Hui
H
Hua
Hui-Ming
HM
D029759:Calophyllum / Q000737:chemistry*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification*
D044004:Xanthones