Takahashi, Yasuko; Fuwa, Haruhiko; Kaneko, Akane; Sasaki, Makoto; Yokoshima, Satoshi; Koizumi, Hifumi; Takebe, Tohru; Kan, Toshiyuki; Iwatsubo, Takeshi; Tomita, Taisuke; Natsugari, Hideaki; Fukuyama, Tohru Bioorganic and Medicinal Chemistry Letters, 2006, vol. 16, # 14 p. 3813 - 3816 doi: 10.1016/j.bmcl.2006.04.025