THE ANTHRAQUINONES OF HETERODERMIA-OBSCURATA

被引：51

作者：

COHEN, PA ^{[1
]}

TOWERS, GHN ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,DEPT BOT,VANCOUVER,BC V6T 1Z4,CANADA

来源：

PHYTOCHEMISTRY | 1995年 / 40卷 / 03期

关键词：

HETERODERMIA OBSCURATA; PHYSCIACEAE; LICHEN; EMODIN; HYPERICIN; ANTHRAQUINONE; BIANTHRONES;

D O I：

10.1016/0031-9422(95)00407-X

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Three anthraquinones, two bianthrones and a phenanthroperylenequinone were isolated from the lichen Heterodermia obscurata (Nyl.) Trevis. (Physciaceae). The structures were inferred from their spectra (UV, mass, H-1 and (13)CNMR): emodin, 7-chloroemodin, 5,7-dichloroemodin, flavoobscurin A, flavoobscurin B and 7,7'-dichlorohypericin, with the latter being recently discovered as a lichen anthraquinone. 7-Chloroemodin and 5,7-dichloroemodin were synthesized by a new method, and characterized spectroscopically. The synthetic and natural products were found to be identical in all respects.

引用

页码：911 / 915

页数：5

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