FURANONAPHTHOQUINONES FROM TABEBUIA-OCHRACEA

被引：38

作者：

ZANI, CL ^{[1
]}

DEOLIVEIRA, AB ^{[1
]}

DEOLIVIERA, GG ^{[1
]}

机构：

[1] UNIV FED MINAS GERAIS, DEPT QUIM, ICEX, CP 702, BR-30161 BELO HORIZONTE, MG, BRAZIL

来源：

PHYTOCHEMISTRY | 1991年 / 30卷 / 07期

关键词：

TABEBUIA-OCHRACEA; BIGNONIACEAE; TRUNKWOOD; LIGNANS; PRENYLNAPHTHOQUINONES; FURANONAPHTHOQUINONES;

D O I：

10.1016/0031-9422(91)83653-3

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：

From the trunkwood of Tabebuia ochracea, beta-sitosterol, cycloolivil, lapachol, and seven furanonaphthoquinones including the known 2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-quinone were isolated. The six new furanonaphthoquinones comprise three similar C2 alcohol-ketone pairs at C-2 as proved by oxidations with pyridinium chlorochromate. 2-Acetyl-6-methoxynaphtho[2,3-b]furan-4,9-quinone was shown to be different from the synthetic 7-methoxy isomer, while 2-acetyl-8-methoxynaphtho[2,3-b]furan-4,9-quinone and 2-acetyl-7,8-dimethoxynaphtho[2,3-b]furan-4,9-quinone were identical to the synthetic compounds.

引用

页码：2379 / 2381

页数：3

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