参考文献
Bubel, O.N.; Tishchenko, I.G.; Grinkevich, O.A.; Stasevich, G.Z; Shavnya, A.V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 10 p. 1076 - 1078
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 10 p. 1315 - 1317