参考文献

Belen'kii, L. I.; Poddubnyi, I. S.; Krayushin, M. M. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1995 , vol. 31, # 6 p. 726 - 736 Khimiya Geterotsiklicheskikh Soedinenii, 1995 , # 6 p. 830 - 842