Constituents of Dragon's Blood .5. Dracoflavans B-1, B-2, C-1, C-2, D-1, and D-2, new A-type deoxyproanthocyanidins

被引：49

作者：

Arnone, A

Nasini, G

dePava, OV

Merlini, L

机构：

[1] POLITECN MILAN,DIPARTIMENTO CHIM,NATL INST CHEM BIOL SYST,CTR CNR SOSTANZE ORGAN NAT,I-20131 MILAN,ITALY

[2] UNIV MILAN,DIPARTIMENTO SCI MOL AGROALIMENT,MILAN,ITALY

来源：

JOURNAL OF NATURAL PRODUCTS | 1997年 / 60卷 / 10期

关键词：

D O I：

10.1021/np9702188

中图分类号：

Q94 [植物学];

学科分类号：

071001 [植物学];

摘要：

From Dragon's Blood, a resin produced by plants of the genus Daemonorops (Palmae), six new A-type flavanoid deoxyproanthocyanidins have been isolated. Their structure and stereochemistry, established by chemical degradation and extensive NMR analysis, is consistent with a mechanism of formation common to other constituents of the resin, which involves oxidation of a 6-methylflavan to a quinonemethide, followed by coupling with another flavan moiety.

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页码：971 / 975

页数：5

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