Two new prenylated isoflavones from Maclura cochinchinensis collected in Hoa Binh province Vietnam

Natural Product Research
Tran Van ChienTran Van Sung

Abstract

Two new prenylisoflavones, 3',4',5-trihydroxy-8-prenyl-dihydrofuran[2″,3″:7,6]isoflavone (1) and 4',5-dihydroxy-8-prenyl-dihydrofuran[2″,3″:7,6]isoflavone (2), along with five known prenylisoflavones (3-7), benzylalcohol-4-O-β-d-glucoside (8) and two cinnamic acid esters (9, 10) were isolated from the leaves of Maclura cochinchinensis (Cudrania cochinchinensis). Their structures were elucidated by analysis of NMR (1H-, 13C-NMR, HSQC, HMBC), MS spectra and comparison with the published data. Compounds 4-10 were the first time isolated from this species. Prenylisoflavones 1-4 and 6-7 were evaluated for their in vitro cytotoxic activity on KB and HepG2 cancer cell lines. Compound 4 showed cytotoxic activity against both cancer cell lines with IC50 values of 26.99 and 19.95 μM, respectively. The other compounds were considered as inactive.

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Citations

Apr 20, 2021·Phytochemistry·Isaraporn PolbupphaSurat Laphookhieo

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Methods Mentioned

BETA
column chromatography

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