参考文献
Pinson, V. V.; Khrustalev, V. A.; Zelenin, K. N.; Matveeva, Z. M.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 10 p. 1170 - 1176
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 10 p. 1415 - 1421
