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Antimicrobial isoflavans from Astragalus species.

Authors
  • el-Sebakhy, N A
  • Asaad, A M
  • Abdallah, R M
  • Toaima, S M
  • Abdel-Kader, M S
  • Stermitz, F R
Type
Published Article
Journal
Phytochemistry
Publisher
Elsevier
Publication Date
Aug 01, 1994
Volume
36
Issue
6
Pages
1387–1389
Identifiers
PMID: 7765429
Source
Medline
License
Unknown

Abstract

Two new antimicrobial isoflavans, 1-[(3R)-7,8-dimethoxybenzopyranyl]-4- hydroxybenzoquinone (astragaluquinone) and (3S)-7,1'-dihydroxy-8,3'-dimethoxyisoflavan (8-methoxyvestitol), and the known 7-hydroxy-2',3',4'-trimethoxyisoflavan were isolated from roots of Astragalus alexandrinus and A. trigonus. The structures of the new isoflavans were established by spectroscopic methods.

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