参考文献

Pesin,V.G.; D'yachenko,E.K. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1967 , vol. 3, p. 68 - 70 Khimiya Geterotsiklicheskikh Soedinenii, 1967 , vol. 3, # 1 p. 97 - 99