参考文献:
Tashmukhamedova, A. K. Stempnevskaya, I. A. Saifullina, N. Zh. Levkovich, M. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 11 p. 1178 - 118 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 11 p. 1461 - 1469