参考文献

Gridnev, I. D.; Shastin, A. V.; Balenkova, E. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1245 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1562 - 1563