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 doi: 10.1016/S0960-894X(99)00305-4