参考文献

Alekseeva, V. Ya.; Boitkov, Yu. A.; Viktorovskii, I. V.; V'yunov, K. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 11 p. 1258 - 1261 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 11 p. 1553 - 1556