参考文献

Shestopalov, A. M.; Sharanin, Yu. A.; Promonenkov, V. K. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 3 p. 317 - 322 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , # 3 p. 370 - 375