参考文献

Gaponik, P. N.; Karavai, V. P. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 10 p. 1172 - 1174 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 10 p. 1422 - 1424