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          <dc:title>Mass Spectra of Some Diterpenoids with the Novel Carbon Skeletons Verrucosane, Neoverrucosane and Homoverrucosane</dc:title>
          <dc:creator>Eguchi, Shizuko</dc:creator>
          <dc:creator>Matsuo, Akihiko</dc:creator>
          <dc:creator>Nakayama, Mitsuru</dc:creator>
          <dc:creator>Takaoka, Daisuke</dc:creator>
          <dc:creator>Hayashi, Shûichi</dc:creator>
          <dc:creator>Eguchi, Shizuko</dc:creator>
          <dc:creator>Matsuo, Akihiko</dc:creator>
          <dc:creator>Nakayama, Mitsuru</dc:creator>
          <dc:creator>Takaoka, Daisuke</dc:creator>
          <dc:creator>Hayashi, Shûichi</dc:creator>
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          <dc:description>The mass spectra of fifteen diterpenoids belonging to the new carbon skeletons of verrucosane, neoverrucosane and homoverrucosane are examined. From their spectra the relationship between fragmentation patterns and substituted modes of these diterpenoids is discussed.</dc:description>
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          <dc:publisher>質量分析研究会</dc:publisher>
          <dc:date>1982-12</dc:date>
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          <dc:identifier>質量分析 = Mass spectroscopy</dc:identifier>
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