埃利塞内加尔因 H 和 I：从塞内加尔刺桐中提取的两种新异黄酮。

Erysenegalenseins H and I: Two New Isoflavones from Erythrina senegalensis1.

机构信息

Department of Organic Chemistry, University of Yaounde, P. O. Box 812 Yaounde, Cameroon.

出版信息

Planta Med. 1994 Apr;60(2):178-80. doi: 10.1055/s-2006-959446.

DOI:10.1055/s-2006-959446

Abstract

In addition to the known Compounds senegalensin, lupinifolin, erythrisenegalone, and auriculatin, two new isoflavones named erysenegalensein H and erysenegalensein I were isolated from the dichloromethane extract of the stem bark of ERYTHRINA SENEGALENSIS DC. On the basis of spectroscopic methods their structures were elucidated as 5,2',4'-trihydroxy-8-(gamma,gamma-dimethylallyl)-2''-hydroxyisopropyldihydrofurano[4'',5'':6,7]-isoflavone and 5,2',4'-trihydroxy-8-(gamma,gamma-dimethylallyl)-3''-hydroxy-2'',2''-dimethyldihydropyrano [5'',6'':6,7]-isoflavone, respectively.

摘要

除了已知的化合物 Senegalensin、Lupinifolin、Erythrisenegalone 和 Auriculatin 外，还从 Erythrina senegalensis DC 的茎皮的二氯甲烷提取物中分离得到了两种新的异黄酮，分别命名为 Erysenegalensein H 和 Erysenegalensein I。基于光谱方法，其结构被阐明为 5,2',4'-三羟基-8-(γ,γ-二甲基烯丙基)-2''-羟基异丙基二氢呋喃[4'',5'':6,7]-异黄酮和 5,2',4'-三羟基-8-(γ,γ-二甲基烯丙基)-3''-羟基-2'',2''-二甲二氢吡喃[5'',6'':6,7]-异黄酮。