Hatakeyama, Susumi; Ikeda, Tatsuhiko; Maeyama, Junji; Esumi, Tomoyuki; Iwabuchi, Yoshiharu; Irie, Hiroshi; Kawase, Akira; Kubodera, Noboru
Bioorganic and Medicinal Chemistry Letters, 1997 , vol. 7, # 22 p. 2871 - 2874