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Report | Regular issue | Vol 22, No. 8, 1984, pp.1791-1800
Published online, 1st January, 1970
DOI: 10.3987/R-1984-08-1791
Constituents of the Chinese Crude Drug "Sang-Bái-pí" (Morus Root Bark) V. Structures of Three New Flavanones, Sanggenons L, M, and N

Yoshio Hano, Masato Itoh, Nanae Koyama, and Taro Nomura*

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


Three new isoprene substituted flavanones, named sanggenons L (1), M (2), and N (3) were isolated from the benzene extract of the Chinese crude drug “Sàng-BÁi-Pi” (Japanese name “Sohakuhi”), the root bark of Morus sp. (Moraceae). The structures 1, 2, and 3 were proposed for these compounds on the basis of the spectrometric and chemical evidence.