参考文献

Krichevskii, E. S.; Alekseeva, L. M.; Granik, V. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1990 , vol. 26, # 11 p. 1235 - 1238 Khimiya Geterotsiklicheskikh Soedinenii, 1990 , vol. 26, # 11 p. 1483 - 1486