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Report | Regular issue | Vol 22, No. 12, 1984, pp.2805-2814
Published online, 1st January, 1970
DOI: 10.3987/R-1984-12-2805
Structures of Mulberrofurans B and L, 2-Arylbenzofuran Derivatives from the Root of the Cultivated Mulberry Tree (Morus lhou (SER.) Koidz.)

Toshio Fukai, Tomoko Fujimoto, Yoshio Hano, Taro Nomura,* and Jun Uzawa

*Faculty of Pharmaceutical Sciences, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan


Mulberrofuran L, a new 2-arylbenzofuran derivative, was isolated from benzene extract of the cultivated mulberry tree (Japanese name “Roso”, a cultivated variety of Morus lhou (SER.) KOIDZ ), and the structure was shown to be 3 on the basis of the spectral and chemical data. The structure of mulberrofuran B was reversed from the structure (2) to 2’ on the basis of the formation of 3 from 2’.