从两种刺桐属植物中分离得到的一种新的异戊烯基化异黄酮和长链酯类化合物。

A new prenylated isoflavone and long chain esters from two Erythrina species.

作者信息

Wandji J, Nkengfack A E, Fomum Z T, Ubillas R, Killday K B, Tempesta M S

机构信息

Department of Organic Chemistry, University of Yaounde, Cameroon.

出版信息

J Nat Prod. 1990 Nov-Dec;53(6):1425-9. doi: 10.1021/np50072a004.

DOI:10.1021/np50072a004

PMID:2089116

Abstract

Two new compounds, a long chain ester 1 of p-coumaric acid and a prenylated isoflavone, senegalensin [5], 5,4'-dihydroxy-8-(gamma,gamma-dimethylallyl)-[5"-(hydroxyisopropyl ) (2",3":6.7)] isoflavone, in addition to a known long chain ester 2 of ferulic acid, have been isolated and characterized from the stem bark of the Cameroonian medicinal plant Erythrina senegalensis. Another known compound 3, a long chain ester of ferulic acid, was isolated from Erythrina excelsa. The structures of all the compounds were determined by spectroscopic techniques.

摘要

从喀麦隆药用植物塞内加尔刺桐的茎皮中，除了已分离得到的阿魏酸长链酯2之外，还分离并鉴定出了两种新化合物，即对香豆酸的长链酯1和异戊烯基化异黄酮塞内加尔刺桐素[5]，5,4'-二羟基-8-(γ,γ-二甲基烯丙基)-[5"-(羟基异丙基)(2",3":6.7)]异黄酮。另一种已知化合物3，即阿魏酸长链酯，是从埃克塞尔萨刺桐中分离得到的。所有化合物的结构均通过光谱技术确定。