参考文献

Tsizin, Yu.S.; Sergovskaya, N.L.; Chernyak, S.A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 4 p. 421 - 424 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 4 p. 514 - 517