参考文献

Ono, Shin'ichiro; Yoshida, Tomohiro; Maeda, Kazuhiro; Kosaka, Keigo; Inoue, Yoshihisa; Imada, Teruaki; Fukaya, Chikara; Nakamura, Norifumi Chemical and Pharmaceutical Bulletin, 1999 , vol. 47, # 12 p. 1694 - 1712