参考文献

Krichevskii, E. S.; Romanova, O. B.; Grinev, A. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 12 p. 1302 - 1305 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , vol. 19, # 12 p. 1648 - 1651