参考文献

Shiraiwa, Tadashi; Miyazaki, Hideya; Ohta, Atsushi; Waki, Yukitaka; Yasuda, Masahiro; Morishita, Toshimitsu; Kurokawa, Hidemoto Chemical and Pharmaceutical Bulletin, 1996 , vol. 44, # 12 p. 2322 - 2325