25 STUDIES ON THE CONSTITUENTS OF THE CULTIVATED MULBERRY TREE PHENOLIC CONSTITUENTS OF THE ROOT BARK OF MORUS ALBA L.

DOI
  • Nomura T.
    Faculty of Pharmaceutical Sciences, Toho University
  • Fukai T.
    Faculty of Pharmaceutical Sciences, Toho University
  • Sawaura Y.
    Faculty of Pharmaceutical Sciences, Toho University
  • Yamada S.
    Faculty of Pharmaceutical Sciences, Toho University
  • Tamura S.
    Faculty of Pharmaceutical Sciences, Toho University

Bibliographic Information

Other Title
  • 25 桑根皮成分の研究 : フェノール性成分について

Abstract

From the root bark of the cultivated mulberry tree (a variety of Morus alba L.), two new flavones, oxydihydromorusin, kuwanon C, and two flavanones, kuwanon D, kuwanon E, were isolated. Their structures were shown to be VII, VIII, XVIII, and XXI, respectively. For the structures of morusin (I), cyclomorusin (II), compound A (III), VII, and VIII, further evidence was obtained by synthesizing of tetrahydrokuwanon C tetramethyl ether (XVII). Photo-sensitized oxidation of I in the presence of sensitizers afforded III, VI, XXII, and XXIII. The possible mechanism of the formation of these compounds from I was discussed.

Journal

Details 詳細情報について

  • CRID
    1390001206074835840
  • NII Article ID
    110006677971
  • DOI
    10.24496/tennenyuki.21.0_183
  • ISSN
    24331856
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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