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Planta Med 1984; 50(2): 161-163
DOI: 10.1055/s-2007-969660
Research Articles

© Georg Thieme Verlag Stuttgart · New York

Components of Root Bark of Cudrania tricuspidata 2. Structures of Two New Isoprenylated Flavones, Cudraflavones A and B.

Tomoko Fujimoto1 , Yoshio Hano1 , Taro Nomura1 , Jun Uzawa2
  • 1Faculty of Pharmaceutical Sciences, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274, Japan
  • 2The Institute of Physical and Chemical Research, Wako, Saitama, Japan
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Publication History

Publication Date:
26 February 2007 (online)

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Abstract

Two new isoprenylated flavones, cudraflavones A and B were isolated from the root bark of Cudrania tricuspidata (Carr.) Bur. (Japanese name “Hariguwa”, Moraceae). The structures of cudraflavones A and B were shown to be 1 and 2, respectively, on the basis of spectral data. Photo-oxidative cyclization occurred with cudraflavone B leading to the formation of a hydroperoxide possessing a dihydrooxepin ring.

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