参考文献

Fedotov, K. V.; Romanov, N. N.; Tolmachev, A. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 5 p. 492 - 498 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , vol. 19, # 5 p. 613 - 618