Kan, Toshiyuki; Tominari, Yusuke; Rikimaru, Kentaro; Morohashi, Yuichi; Natsugari, Hideaki; Tomita, Taisuke; Iwatsubo, Takeshi; Fukuyama, Tohru Bioorganic and Medicinal Chemistry Letters, 2004 , vol. 14, # 8 p. 1983 - 1985