参考文献
Anisimov, A. V.; Babaitsev, V. S.; Kolosova, T. A.; Viktorova, E. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 10 p. 1029 - 1032
Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 10 p. 1335 - 1337