参考文献
Kuramshin, E. M.; Gumerova, V. K.; Zlot-skii, S. S.; Rakhmankulov, D. L.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 4 p. 379 - 380
Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 4 p. 458 - 460