参考文献

Yamaguchi, Seiji; Tsuchida, Nao; Umeda, Kayoko; Yokoyama, Hajime; Miyazawa, Masahiro; Hirai, Yoshiro Journal of Heterocyclic Chemistry, 2006, vol. 43, # 3 p. 657 - 662 doi: 10.1002/jhet.5570430319