Biflavonoids, part 4. Structure and stereochemistry of novel flavanone- and the first isoflavanone-benzofuranone biflavonoids

被引：10

作者：

Bekker, R

Brandt, EV

Ferreira, D

机构：

[1] Univ Orange Free State, Dept Chem, ZA-9300 Bloemfontein, South Africa

[2] Univ Mississippi, Sch Pharm, Pharmaceut Sci Res Inst, Natl Ctr Nat Prod Res, University, MS 38677 USA

来源：

TETRAHEDRON | 1999年 / 55卷 / 33期

关键词：

biflavonoids; biogenesis; isoflavanone; benzofuranone; circular dichroism;

D O I：

10.1016/S0040-4020(99)00559-1

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The structure and stereochemistry of (2R,3S)-naringenin-(3 alpha-->5)-(2R)-maesopsin its isoflavanone analogue, (2S,3R)-dibydrogenistein-(2 alpha-->7)-(2R )-maesopsin, and the 2S (F-ring) diastereomers of both compounds from the heartwood of Berchemia zeyheri were established by H-1 NMR and CD data. The isoflavanone analogues represent the first isoflavanone-benzofuranone biflavonoids. (C) 1999 Elsevier Science Ltd. All rights reserved.

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页码：10005 / 10012

页数：8

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