Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
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Biflavonoids from Cycas beddomei
Biswanath DasGurram MahenderYerra Koteswara RaoAnabathula PrabhakarBharatam Jagadeesh
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2005 Volume 53 Issue 1 Pages 135-136

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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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© 2005 The Pharmaceutical Society of Japan
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