Kikuchi, Tatsuya; Zhang, Ming-Rong; Ikota, Nobuo; Fukushi, Kiyoshi; Okamura, Toshimitsu; Suzuki, Kazutoshi; Arano, Yasushi; Irie, Toshiaki Journal of Medicinal Chemistry, 2005 , vol. 48, # 7 p. 2577 - 2583