Nishino, Reiko; Ikeda, Kiyoshi; Hayakawa, Takuya; Takahashi, Tadanobu; Suzuki, Takashi; Sato, Masayuki Bioorganic and Medicinal Chemistry, 2011, vol. 19, # 7 p. 2418 - 2427 doi: 10.1016/j.bmc.2011.02.010