Prenylated isoflavones from Flemingia philippinensis

✍ Scribed by Hua Li; Meihua Yang; Jianhua Miao; Dr. Xiaojun Ma

• Book ID: 102529705
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 113 KB
• Volume: 46
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.2336

✦ Synopsis

Abstract

Two new prenylated isoflavones, named flemiphilippinins E and F, were isolated from the roots of Flemingia philippinensis, together with six known ones. The structures of the above compounds were established by spectroscopic methods. Flemiphilippinins E and F were identified as 5,4′‐dihydroxy‐8‐(3,3‐dimethylallyl)‐6″,6″‐dimethyl‐5″‐(1,1‐dimethylallyl) pyrano(2″,3″:7,6)isoflavone and 5,4′‐dihydroxy‐4″,4″,5″‐trimethyl‐4″,5″‐dihydrofurano(2″,3″:7,8) isoflavone, respectively, by a combination of HR‐EI‐MS, ^1^H NMR, ^13^C NMR, HMQC, HMBC, and NOESY spectra. Copyright © 2008 John Wiley & Sons, Ltd.