参考文献

Nadim, Al' Mokhana; Romashin, Yu. N.; Kulinkovich, O. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 8 p. 918 - 920 Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 8 p. 1141 - 1143