Kohda H, Tokumoto W, Sakamoto K, Fujii M, Hirai Y, Yamasaki K, Komoda Y, Nakamura H, Ishihara S, Uchida M.
Hiroshima University, Tokyo Medical and Dental University, TOKIWA Phytochemical Co., Ltd.
Chem Pharm Bull (Tokyo)., 33(4), 1367-1374. (1985)