The Structure of cis- and trans-Glaupadiol (Studies on the Constituents of the Rhizomes of Glaucidium palmatum SIEB. et ZUCC.)

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  • cis-およびtrans-Glaupadiolの構造について(シラネアオイの根茎の成分研究)
  • cis- オヨビ trans-glaupadiol ノ コウゾウ ニ ツイテ シラネアオイ ノ コンケイ ノ セイブン ケンキュウ

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A new type coumarim (II), C15H16O5, mp 234°, was isolated from rhizomes of Glaucidium palmatum SIEN. et ZUCC., and named glaupadiol. From the experimental results of nuclear magnetic resonance, optical rotatoly dispersion, infrared, and mass spectra, this compound (II) was found to be a mixture of cis and trans forms, and its structure was revealed as 3-hydroxymethyl-8-hydroxy-2, 3, 9-trimethyl-2, 3-dihydrofuro[3, 2-c]-chromen-4-one. The hydroxymethyl group in this compound (II) was bonded to the furan ring in place of the methyl group of racemic glaupalol (I), which was previously isolated from this rhizome.

Journal

  • YAKUGAKU ZASSHI

    YAKUGAKU ZASSHI 93 (2), 202-206, 1973

    The Pharmaceutical Society of Japan

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