Yoshiizumi, Kazuya; Nakajima, Fumio; Dobashi, Rika; Nishimura, Noriyasu; Ikeda, Shoji Bioorganic and Medicinal Chemistry, 2002, vol. 10, # 8 p. 2445 - 2460 doi: 10.1016/S0968-0896(02)00120-7