参考文献

Gaponik, P. N.; Grigor'ev, Yu. V.; Karavai, V. P. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 4 p. 477 - 478 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 4 p. 566 - 567