NOVEL ANGULAR PYRANOCOUMARINS FROM BORONIA-LANCEOLATA

被引：14

作者：

AHSAN, M

GRAY, AI

LEACH, G

WATERMAN, PG

机构：

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

[2] CONSERVAT COMMISS NO TERR,HERBARIUM,PALMERSTON,NT 0831,AUSTRALIA

来源：

PHYTOCHEMISTRY | 1994年 / 36卷 / 03期

关键词：

BORONIA LANCEOLATA; RUTACEAE; 8-GERANYL AND 6-PRENYL SUBSTITUTED UMBELLIFERONE DERIVATIVES; 5-DEOXYPROTOBRUCEOL REGIOISOMERS; NMR;

D O I：

10.1016/S0031-9422(00)89816-7

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 aerial parts of Boronia lanceolata have yielded eight coumarins. Four of these were characterized by NMR analysis as a novel series of angular pyranocoumarins 8-methyl-8-(4-methylpent-3-enyl)-2H-benzo-[1,2-b:5,6-b']-dipyran-2-one (5-deoxyprotobruceol-I regioisomer), 8-methyl-8-(4-hydroperoxy-4-methylpent-2 [1,2-b:5,6-b']-dipyran-2-one (5-deoxyprotobruceol-II hydroperoxide regioisomer) and the two stereoisomers of 8-methyl-8-(3 xi-hydroperoxy-4-methylpent-4-enyl)-2H-benzo- [1,2-b:5,6-b']-dipyran-2-one (5-deoxyprotobruceol-III-hydroperoxide regioisomer). The remainder were identified as 7-hydroxy-8-geranylcoumarin, xanthyletin, demethylsuberosin and 7-hydroxy-6-(2(R)-hydroxy-3-methylbut-3-enyl)coumarin, which also appears to be novel.

引用

页码：777 / 780

页数：4

共 13 条

[1]

AHSAN M, 1993, PHYTOCHEMISTRY, V34, P1507

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