参考文献

Iovel', I. G.; Gol'dberg, Yu. Sh.; Gaukhman, A. P.; Zolotoyabko, R. M.; Shimanskaya, M. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 7 p. 768 - 771 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 7 p. 959 - 962