参考文献

Pavlishchuk, V. V.; Strizhak, P. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 5 p. 553 - 555 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 5 p. 660 - 662