参考文献
Zubets, I. V.; Boikov, Yu. A.; Viktorovskii, I. V.; V'yunov, K. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 10 p. 1148 - 1152
Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 10 p. 1416 - 1419