参考文献
Voronkov,M.G.; Romadan,Yu.P.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1966 , vol. 2, p. 671 - 681
Khimiya Geterotsiklicheskikh Soedinenii, 1966 , vol. 2, # 6 p. 879 - 891
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Woronkow; Romadan
Khimiya Geterotsiklicheskikh Soedinenii, 1966 , p. 879,883,886;engl.Ausg.S.671,674,677