[1] Chen RY, Yu DQ. Acta Pharm Sin, 1990, 25: 940. [2] Nishitoba T, Sato H, Kasai T, Kawagishi H, Sakamura S. Agric Biol Chem, 1985, 49: 1793. [3] Komoda Y, Nakamura H, Ishihara S. Chem Pharm Bull, 1985, 33: 4829. [4] Nishitoba T, Sato H, Kasai T, Kawagishi H, Sakamura S. A gric Biol Chem, 1984, 48: 2905. [5] Sato H, Nishitoba T, Shirasu S, Sakamura S. Agric Biol Chem, 1986, 50: 2887. [6] Morigiwa A, Kitabatake K, Fujimoto Y, Ikekawa N. Chem Pharm Bull, 1986, 34: 3025. [7] Arisawa M, Fujita A, Saga M, Fukumura H, Hayashi T, Shimizu M, Morita N. J Nat Prod, 1986, 49: 621. [8] Nishitoba T, Sato H, Sakamura S. Phytochemistry, 1987, 26: 1777. |