参考文献

Azev, Yu. A.; Sidorov, E. O.; Mudretsova, I. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 12 p. 1396 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 12 p. 1692 - 1693