Seto, Masaki; Miyamoto, Naoki; Aikawa, Katsuji; Aramaki, Yoshio; Kanzaki, Naoyuki; Iizawa, Yuji; Baba, Masanori; Shiraishi, Mitsuru Bioorganic and Medicinal Chemistry, 2005 , vol. 13, # 2 p. 363 - 386