Compound isolated from Ginkgo biloba bark, isolation method thereof and antiplatelet composition containing the same
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United States of America Patent
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Mar 11, 2008
Grant Date -
Jan 17, 2008
app pub date -
Nov 8, 2006
filing date -
Jul 14, 2006
priority date (Note) -
Expired
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Abstract
Disclosed herein are a novel compound isolated from Ginkgo biloba and a method for isolating the novel compound from Ginkgo biloba. The method comprises: (1) extracting Ginkgo biloba with alcohol to obtain a crude extract; (2) subjecting the Ginkgo biloba crude extract to solvent fractionation using an organic solvent; (3) fractionating the solvent fractions by Sephadex column chromatography; and (4) fractionating the Sephadex fractions by silica gel column chromatography.
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