参考文献

Safiev, O.G.; Nazarov, D.V.; Zorin, V.V.; Rakhmankulov, D.L. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , p. 702 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , vol. 24, # 6 p. 852