参考文献

Shutalev, A. D.; Komarova, E. N.; Ignatova, L. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1993 , vol. 29, # 10 p. 1182 - 1191 Khimiya Geterotsiklicheskikh Soedinenii, 1993 , # 10 p. 1378 - 1388