参考文献

Yurovskaya, M.A.; Afanas'ev, A.Z.; Chertkov, V.A.; Bundel', Yu.G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , p. 704 Khimiya Geterotsiklicheskikh Soedinenii, 1988 , vol. 24, # 6 p. 854