Kondo, Takashi; Sugimoto, Isamu; Nekado, Takahiro; Ochi, Kenya; Ohtani, Tazumi; Tajima, Yohei; Yamamoto, Susumu; Kawabata, Kazuhito; Nakai, Hisao; Toda, Masaaki Bioorganic and Medicinal Chemistry, 2007, vol. 15, # 7 p. 2715 - 2735 doi: 10.1016/j.bmc.2007.01.033