参考文献

Perevalov, V. P.; Manaev, Yu. A.; Baryshnenkova, L. I.; Kanep, E. E.; Andreeva, M. A.; Stepanov, B. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 10 p. 1081 - 1083 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 10 p. 1350 - 1352