TRITERPENOID EXTRACTIVES IN THE OUTER BARK OF BETULA-LENTA (BLACK BIRCH)

被引：45

作者：

COLE, BJW

BENTLEY, MD

HUA, Y

机构：

[1] Department of Chemistry, University of Maine, Orono

来源：

HOLZFORSCHUNG | 1991年 / 45卷 / 04期

关键词：

BIRCH; BLACK BIRCH; BETULA-LENTA; TRITERPENES; BARK EXTRACTIVES; BETULIN; LUPEOL; LUPENONE; BETULONE; LUP-20(29)-ENE-28-OL-3-ONE; LUP-20(29)-ENE-3-BETA; 28-DIOL-30-AL; BETULINIC ACID; BETULIN-3-CAFFEATE; LUPAN-3-BETA; 20-DIOL;

D O I：

10.1515/hfsg.1991.45.4.265

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Birch bark represents an abundant, and currently unutilized, natural resource. In this study, the triterpenoid composition of the outer bark of the darkbarked birch species, Betula lenta, was investigated. Lupeol was the most abundant triterpene. Betulin, lupenone, betulone, betulinic acid, betulin-3-caffeate, lup-20(29)-ene-3-beta,30-diol, lup-20(29)-ene-3-beta-ol-30-al, lup-20(29)-ene-3-beta,28-diol-30-al, and lupan-3-beta,20-diol were also isolated and identified. To our knowledge, betulone (lup-20(29)-ene-28-ol-3-one) and lup-20(29)-ene-3-beta,28-diol-30al, previously prepared synthetically, are new natural products.

引用

页码：265 / 268

页数：4

共 20 条

[1] 3 TRITERPENES AND OTHER TERPENOIDS FROM CATHA-CASSINOIDES [J].