30-NORFRIEDELANE TRITERPENES FROM THE STEM BARK OF CALONCOBA-GLAUCA

被引：36

作者：

GINERPONS, RM

GRAY, AI

LAVAUD, C

MASSIOT, G

GIBBONS, S

WATERMAN, PG

机构：

[1] UNIV STRATHCLYDE, DEPT PHARMACEUT SCI, PHYTOCHEM RES LABS, GLASGOW G1 1XW, SCOTLAND

[2] UNIV VALENCIA, FAC FARM, DEPT FARMACOL, E-46010 VALENCIA, SPAIN

[3] UNIV REIMS, FAC PHARM, PHARMACOGNOSIE LAB, CNRS, URA 492, F-51096 REIMS, FRANCE

来源：

PHYTOCHEMISTRY | 1992年 / 31卷 / 01期

关键词：

CALONCOBA-GLAUCA; FLACOURTIACEAE; STEM BARK; 30-NORFRIEDELANE TRITERPENES; TRICHADONIC ACID; 3,27-DIOXO-30-NORFRIEDELAN-20(29)-EN-27,15-ALPHA-LACTONE; 3,27-DIOXO-21-BETA-HYDROXY-30-NORFRIEDELAN-20(29)-EN-17,15-ALPHA-LACTONE;

D O I：

10.1016/0031-9422(91)83041-I

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：

The stem bark of Caloncoba glauca has yielded three friedelane triterpenes of which two are characterized by the loss of C-30 and the presence of a C-27, C-15 lactone. They were identified, with considerable use of long-range C-H coupling studies, as the known compound trichadonic acid (3-oxofriedelan-27-oic acid) and two new 30-norfriedelane derivatives, 3,27-dioxo-30-norfriedelan-20(29)-en-27,15-alpha-lactone (caloncobalactone) and 3,27-dioxo-21-beta-hydroxy-30-norfriedelan-20(29)-en-17,15-alpha-lactone (21-beta-hydroxycaloncoba lactone).

引用

页码：223 / 225

页数：3

共 10 条

[1] H-1 AND C-13 ASSIGNMENTS FROM SENSITIVITY-ENHANCED DETECTION OF HETERONUCLEAR MULTIPLE-BOND CONNECTIVITY BY 2D MULTIPLE QUANTUM NMR [J].