Nakamura, Toshio; Sato, Masakazu; Kakinuma, Hiroyuki; Miyata, Noriyuki; Taniguchi, Kazuo; Bando, Kagumi; Koda, Ayumi; Kameo, Kazuya Journal of Medicinal Chemistry, 2003 , vol. 46, # 25 p. 5416 - 5427