Ukrainets, I. V.; Bezuglyi, P. A.; Treskach, V. I.; Kornilov, M. Yu.; Turov, A. V.; et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 8 p. 912 - 916
Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 8 p. 1086 - 1090

Shridhar, D. R.; Sastry, C. V. Reddy; Mehrotra, A. K.; Nagarajan, R.; Lal, B.; Bhopale, K. K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 1 p. 59 - 61

Shridhar, D. R.; Sastry, C. V. Reddy; Mehrotra, A. K.; Nagarajan, R.; Lal, B.; Bhopale, K. K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 1 p. 59 - 61

Shridhar, D. R.; Sastry, C. V. Reddy; Mehrotra, A. K.; Nagarajan, R.; Lal, B.; Bhopale, K. K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 1 p. 59 - 61