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Communication | Regular issue | Vol 24, No. 7, 1986, pp.1807-1813
Published online, 1st January, 1970
DOI: 10.3987/R-1986-07-1807
Structure of Mulberrofuran Q, a Novel 2-Arylbenzofuran Derivative from the Cultivated Mulberry Tree (Morus alba L.)

Yoshio Hano, Hiromi Tsubura, and Taro Nomura*

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


A novel 2-arylbenzofuran derivative, mulberrofuran Q, was isolated from the reddish violet powder (lenticel) of the surface of the root bark of cultivated mulberry tree (Ichinose, a cultivated variety of Morus alba L.). Its structure was shown to be 1 on the basis of spectral and chemical evidence. Mulberrofuran Q is regarded biogenetically as a variation of a Diels-Alder type adduct of a chalcone derivative and a dehydroprenyl-2-arylbenzofuran derivative.