Mizuno, Akira; Ogata, Atsuto; Kamei, Tomoe; Shibata, Makoto; Shimamoto, Tetsuo; Hayashi, Yasuhiro; Nakanishi, Kyoko; Takiguchi, Chikako; Oka, Naomi; Inomata, Norio Chemical and Pharmaceutical Bulletin, 2000 , vol. 48, # 5 p. 623 - 635