Heartwood constituents of Betula maximowicziana

被引：65

作者：

Hanawa, F ^{[1
]}

Shiro, M ^{[1
]}

Hayashi, Y ^{[1
]}

机构：

[1] RIGAKU CO, AKISHIMA, TOKYO 196, JAPAN

来源：

PHYTOCHEMISTRY | 1997年 / 45卷 / 03期

关键词：

Betula maximowicziana; Betulaceae; heartwood; diarylheptanoids; lignans; X-ray analysis; stereochemistry;

D O I：

10.1016/S0031-9422(96)00885-0

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：

In addition to two lignans, (-)-(7R, 8S,8'S)-lyoniresiol (3) and (-)-(7R,8S)-dihydrodehydrodiconiferyl alcohol (4) in their racemic forms, respectively, a biphenyl-type diarylheptanoid (-)-(a double dagger S, 3 '' S, 5 '' S)-alnusdiol (1) and a diphenyl ether type diarylheptanoid [(-)-rel-(p R, 3S, 5S)-3',4 ''-epoxy-1-(4-hydroxyphenyl)-7-phenylheptane-3,5-diol] named as (-)-rel-(pR, 3S, 5S)-maximowicziol A (2) were isolated from the heartwood of Betula maximowicziana. The absolute configuration of 1 and the relative configuration of 2 are presented on the basis of X-ray and CD analyses for the first time. (C) 1997 Elsevier Science Ltd.

引用

页码：589 / 595

页数：7

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