参考文献
Ukrainets, I. V.; Bezuglyi, P. A.; Treskaya, V. I.; Turov, A. V.; Slobodzyan, S. V.; Gorokhova, O. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 8 p. 907 - 909
Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 8 p. 1128 - 1130
