巴戟天和恩施巴戟的蒽醌化合物

从巴戟天(Morinda officinalis How.)根的氯仿提取物中,分离得八个蒽醌化合物,其中二个为新化合物,它们的结构为1,6-二羟基-2,4-二甲氧基蒽醌(1,6-dihydroxy-2,4-dimethoxyanthraquinone,V),1,6-二羟基-2-甲氧基蒽醌(1,6-dihydroxy-2-methoxy-anthraquinone,Ⅵ)。从恩施巴戟(Damnacanthus indicus Linn.)根的氯仿提取物中,分离得七个蒽醌化合物,其中一个为新化合物,其结构为1,4-二甲氧基-2α-羟基蒽醌(1,4-dimethoxy-2-hydroxyanthraquinone,ⅩⅢ)。

ANTHRAQUINONES ISOLATED FROM ORINDA OFFICINALIS AND DAMNACANTHUS INDICUS

From chloroform extract of the root of Morinda officinalis, eight anthraquinones were isolated whose structures were deduced to be rubiadin (I), rubiadin-1-methyl ether (II), 1-hydroxyanthraquinone (III), 1-hydroxy-2-methylanthraquinone (IV), 1,6-dihydroxy-2,4-dimethoxyanthraquinone (V), 1,6-dihydroxy-2-methoxyanthraquinone (VI), 1-hydroxy-2-methoxyanthraquinone (VII) and physcion (VIII). Except for compound I and compound II, the other compounds, 1-hydroxy-2-hydroxymethylanthraquinone (IX), 1,3-dihydroxy-2-methoxy-anthraquinone (X), 1,4-dihydroxy-2-methylanthraquinone (XI), 1-methoxy-2-hydroxyanthraquinone (XII) and 1,4-dimethoxy-2-hydroxyanthraquinone (XIII), were isolated from chloroform extract of root of Damnacanthus indicus. Compound V, VI and XIII are new compounds.