Shimizu, Kazuki; Kawase, Akira; Haneishi, Tsuyoshi; Kato, Yasuharu; Kobayashi, Takamitsu; Sekiguchi, Nobuo; Yamamoto, Tessai; Ishigai, Masaki; Tokuda, Kazuo; Matsushita, Tomochika; Shimaoka, Shin; Morikawa, Kazumi Bioorganic and Medicinal Chemistry, 2006, vol. 14, # 6 p. 1838 - 1850 doi: 10.1016/j.bmc.2005.10.034