参考文献

Kurbanov, A. I.; Turgunov, E.; Sirlibaev, T. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, # 10 p. 1135 - 1137 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , # 10 p. 1369 - 1371