New linear pyranoxanthones from Calophyllum apetalum

被引：19
|
作者：
Iinuma, M [1 ]
Ito, T [1 ]
Tosa, H [1 ]
Tanaka, T [1 ]
Miyake, R [1 ]
Chelladurai, V [1 ]
机构：
[1] CENT COUNCIL RES AYURVEDA & SIDDHA, SURVEY MED PLANT UNIT, TIRUNELVELI 627002, TAMIL NADU, INDIA
来源：
HETEROCYCLES | 1997年 / 45卷 / 02期
关键词：
D O I：
10.3987/COM-96-7652
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The investigation of chemical constituents in stem bark and root of Calophyllum apetalum (Guttiferae) led to isolate sixteen xanthones and two coumarin derivatives. Among them, two linear pyranoxanthones [caloxanthones I (1) and J (2)] from the stem bark, and two xanthones [caloxanthone K (10) and 1,3,6,8-trihydroxy-2-methoxyxanthone (12)] from the root were new ones. The respective structures were determined by the spectral analysis.
引用
收藏
页码：299 / 307
页数：9
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