参考文献

Russkikh, V. S.; Abashev, G. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 11 p. 1183 - 1185 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , # 11 p. 1483 - 1485