Hamada, Yoshio; Ohtake, Jun; Sohma, Youhei; Kimura, Tooru; Hayashi, Yoshio; Kiso, Yoshiaki Bioorganic and Medicinal Chemistry, 2002, vol. 10, # 12 p. 4155 - 4167 doi: 10.1016/S0968-0896(02)00322-X