参考文献
Korostova, S. E.; Shevchenko, S. G.; Shmidt, E. Yu.; Aliev, I. A.; Lazarev, I. M.; Sigalov, M. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 5 p. 510 - 514
Khimiya Geterotsiklicheskikh Soedinenii, Sbornik, 1992 , # 5 p. 609 - 613