参考文献
Doroshenko, A. O.; Posokhov, E. A.; Shershukov, V. M.; Mitina V. G.; Ponomarev, O. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1995 , vol. 31, # 4 p. 492 - 499
Khimiya Geterotsiklicheskikh Soedinenii, 1995 , # 4 p. 558 - 566