J Integr Plant Biol. ›› 1997, Vol. 39 ›› Issue (5): -.

• Research Articles •    

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.

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

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