参考文献

Katsura, Yousuke; Nishino, Shigetaka; Ohno, Mitsuko; Sakane, Kazuo; Matsumoto, Yoshimi; Morinaga, Chizu; Ishikawa, Hirohumi; Takasugi, Hisashi Journal of Medicinal Chemistry, 1999 , vol. 42, # 15 p. 2920 - 2926