Kasai, Soko; Nagasawa, Hideko; Yamashita, Mao; Masui, Mie; Kuwasaka, Hideki; Oshodani, Tomoko; Uto, Yoshihiro; Inomata, Taisuke; Oka, Shigenori; Inayama, Seiichi; Hori, Hitoshi Bioorganic and Medicinal Chemistry, 2001 , vol. 9, # 2 p. 453 - 464