Kawanaka, Yasufumi; Kobayashi, Kaoru; Kusuda, Shinya; Tatsumi, Tadashi; Murota, Masayuki; Nishiyama, Toshihiko; Hisaichi, Katsuya; Fujii, Atsuko; Hirai, Keisuke; Nishizaki, Minoru; Naka, Masao; Komeno, Masaharu; Nakai, Hisao; Toda, Masaaki Bioorganic and Medicinal Chemistry, 2003 , vol. 11, # 5 p. 689 - 702