Biflavonoids from Cycas beddomei

Biswanath Das; Gurram Mahender; Yerra Koteswara Rao; Anabathula Prabhakar; Bharatam Jagadeesh

doi:10.1248/cpb.53.135

Notes

Biflavonoids from Cycas beddomei

Biswanath Das, Gurram Mahender, Yerra Koteswara Rao, Anabathula Prabhakar, Bharatam Jagadeesh

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Keywords: Cycas beddomei, cycadacea, cone, biflavonoid, 2,3-dihydro-4′′′-O-methyl amentoflavone

JOURNAL FREE ACCESS

2005 Volume 53 Issue 1 Pages 135-136

DOI https://doi.org/10.1248/cpb.53.135

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Abstract

Chemical investigation on the constituents of the cones of Cycas beddomei has resulted in the isolation of a new biflavonoid, 2,3-dihydro-4′′′-O-methyl amentoflavone, along with 2,3,2″,3″-tetrahydro hinokiflavone, 2,3,2″,3″-tetrahydro amentoflavone, 2,3-dihydro amentoflavone. The last two compounds were not reported earlier from this plant. The structure of the new compound was established by detailed analysis of its spectral (mainly 1D and 2D NMR) data.

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