Torisu, Kazuhiko; Kobayashi, Kaoru; Iwahashi, Maki; Nakai, Yoshihiko; Onoda, Takahiro; Nagase, Toshihiko; Sugimoto, Isamu; Okada, Yutaka; Matsumoto, Ryoji; Nanbu, Fumio; Ohuchida, Shuichi; Nakai, Hisao; Toda, Masaaki Bioorganic and Medicinal Chemistry, 2004 , vol. 12, # 20 p. 5361 - 5378