参考文献

Yutilov, Yu. M.; Shcherbina, L. I.; Efremenko, A. F. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 7 p. 783 - 790 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 7 p. 940 - 947