参考文献
Orlov, V. D.; Aziz, M. A.; Mchedlov-Petrosyan, N. O.; Asoka, P. K. D.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 11 p. 1246 - 1250
Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 11 p. 1511 - 1516