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Paper | Regular issue | Vol 32, No. 7, 1991, pp.1357-1364
Published online, 1st January, 1970
DOI: 10.3987/COM-91-5754
Components of the Root Bark of Morus insignis Bur. 2. Structures of Four New Isoprenylated Xanthones, Morusignins E, F, G. and H

Yoshio Hano, Tsuyoshi Okamoto, and Taro Nomura*

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

Abstract

Four new isoprenylated xanthones, morusignins E (1), F (2), G (3), and H (4) were isolated from the root bark of Morus insignis Bur. (Moraceae), collected in Paraguay. The structures of morusignins E - H were shown to be 1 - 4, respectively, on the basis of spectroscopic data.