参考文献

Suzuki, Hideaki; Tsutsui, Hideyuki; Kano, Atsuyuki; Katoh, Satoru; Morita, Tadashi; Matsuda, Kiyoshi; Iibuchi, Norihiro; Ogawa, Masashi Heterocycles, 1997 , vol. 45, # 9 p. 1657 - 1661