Acta Botanica Sinica Volume 39 Issue 5, Pages .
Antimicrobial Isoflavans from Astragalus membranaceus (Fisch.) Bunge

Song Chun-qing, Zheng Zhi-ren, Liu Di and Hu Zhi-bi

Abstract:
Two new antimicrobial isoflavans, (3R)-8,2'-dihydroxy-7,4'-dimethoxyisoflavan and (3R)-7,2', 3'-trihydroxy-4'-methoxyisoflavan were isolated from root of Astragalus membranaceus (Fisch.) Bnnge. Their structures were elucidated by means of chemical conversions and spectral analysis.

Keywords:
Astragalus membranaceus, Antimicrobials, (3R)-8,2''-dihydroxy-7,4''-dimethoxy-isoflavan, (3 R) -7,2'', 3''-trihydroxy-4''- methoxyisoflavan

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