参考文献
Gevorkyan, A. A.; Kazaryan, P. I.; Sargysyan, M. S.; Petrosyan, K. A.; Mkrtumyan, S. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 7 p. 712 - 713
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , vol. 19, # 7 p. 891 - 892