Shiraishi, Mitsuru; Aramaki, Yoshio; Seto, Masaki; Imoto, Hiroshi; Nishikawa, Youichi; Kanzaki, Naoyuki; Okamoto, Mika; Sawada, Hidekazu; Nishimura, Osamu; Baba, Masanori; Fujino, Masahiko Journal of Medicinal Chemistry, 2000 , vol. 43, # 10 p. 2049 - 2063