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

页码：299 / 307

页数：9

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