Murata, Toshiki; Shimada, Mitsuyuki; Sakakibara, Sachiko; Yoshino, Takashi; Masuda, Tsutomu; Shintani, Takuya; Sato, Hiroki; Koriyama, Yuji; Fukushima, Keiko; Nunami, Noriko; Yamauchi, Megumi; Fuchikami, Kinji; Komura, Hiroshi; Watanabe, Akihiko; Ziegelbauer, Karl B.; Bacon, Kevin B.; Lowinger, Timothy B. Bioorganic and Medicinal Chemistry Letters, 2004 , vol. 14, # 15 p. 4019 - 4022