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Paper | Regular issue | Vol 29, No. 4, 1989, pp.807-813
Published online, 1st January, 1970
DOI: 10.3987/COM-89-4906
Two New Phenolic Compounds, Kuwanols C and D, from the Root Bark of a Mulberry Tree Redifferentiated from the Callus Tissues

Yoshio Hano, Shinkichi Suzuki, Taro Nomura,* and Shinichi Ueda

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

Abstract

A new isoprenoid-substituted flavanone, kuwanol C, and a new isoprenoid-substituted chalcone, kuwanol D, were isolated from the root bark of a mulberry tree redifferentiated from the callus tissues along with eight known phenolic compounds. On the basis of spectral evidence, structures of kuwanols C and D were shown to be 1 and 2, respectively.