Kuroyanagi, Jun-Ichi; Kanai, Kazuo; Sugimoto, Yuuichi; Horiuchi, Takao; Achiwa, Issei; Takeshita, Hiroshi; Kawakami, Katsuhiro Bioorganic and Medicinal Chemistry, 2010 , vol. 18, # 21 p. 7593 - 7606