• Title/Summary/Keyword: 11-oxo-3, 8, 12, 17-tetrahydroxy-9-ene[7, 0]-metacyclophane and 11-oxo-3, 8, 9, 10, 12, 17-hexahydroxy[7, 0]-metacyclophane

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Extractives from the Sapwood of Betula maximowicziana (큰잎자작(Betula maximowicziana) 변재의 추출성분)

  • Lee, Hak-Ju;Kato, Atsushi
    • Journal of the Korean Wood Science and Technology
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    • v.31 no.2
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    • pp.45-51
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    • 2003
  • One flavonoid, lignan glycosides and two diarylheptanoids were isolated from the sapwood of Betula maximowicziana. The structures were determined as : catechin 7-O-𝛽-D-xylopyranoside, lyoniresinol 9'-O-𝛽-D-glucopyranoside, 11-oxo-3, 8, 12, 17-tetrahydroxy-9-ene[7, 0]-metacyclophane and 11-oxo-3, 8, 9, 10, 12, 17-hexahydroxy[7, 0]-metacyclophane, respectively, on the basis of spectrosopic data and chemical correlations.