Alekseenko, T. A.; Bazhbeuk-Melikova, T. S.; Zelenskaya, O. V.; Kozinskii, V. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 11 p. 1299 - 1300
Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 11 p. 1550 - 1551

Zhang, Gui-Sheng; Gong, Hui; Yang, De-Hong; Chen, Mi-Feng
Synthetic Communications, 1999 , vol. 29, # 7 p. 1165 - 1170