参考文献
Volovenko, Yu. M.; Litenko, V. A.; Dashkovskaya, E. V.; Babichev, F. S.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 8 p. 796 - 798
Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 8 p. 1047 - 1048