参考文献

Ohashi, Hiroshi; Ueno, Akihiro; Nakao, Toyoo; Ito, Junko; Kimura, Kaname; Ishikawa, Masaharu; Kawai, Hiroyuki; Iijima, Hiroshi; Osawa, Tatsushi Bioorganic and Medicinal Chemistry Letters, 1999 , vol. 9, # 14 p. 1945 - 1948