Rast, Slavko; Stephan, Michel; Mohar, Barbara
Tetrahedron Letters, 2012 , vol. 53, # 50 p. 6815 - 6818

Marinina, L. E.; Alekseeva, V. I.; Savvina, L. P.; Luk'yanets, E. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1988 , vol. 24, p. 220 - 225
Khimiya Geterotsiklicheskikh Soedinenii, 1988 , vol. 24, # 2 p. 262 - 267

Rast, Slavko; Stephan, Michel; Mohar, Barbara
Tetrahedron Letters, 2012 , vol. 53, # 50 p. 6815 - 6818