Lisina, N. I.; Chernov, G. A.; Bizunov, Yu. M.; Emel'yanov, V. I.; Knunyants, I. L.
Pharmaceutical Chemistry Journal, 1988 , vol. 22, # 6 p. 472 - 476
Khimiko-Farmatsevticheskii Zhurnal, 1988 , vol. 22, # 6 p. 705 - 710
Khanna, J. M.; Tandon, V. K.; Kar, K.; Sur, R. N.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1985 , vol. 24, p. 71 - 77
Eshimbetov,Z. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1973 , vol. 9, p. 428 - 430
Khimiya Geterotsiklicheskikh Soedinenii, 1973 , vol. 9, p. 464 - 466