Tomczuk, Bruce E.; Taylor, C. R; Moses, L. Meredith; Sutherland, Deborah B.; Lo, Young S.; et al.
Journal of Medicinal Chemistry, 1991 , vol. 34, # 10 p. 2993 - 3006
Dubey; Kumar, R. Vinod; Kulkarni, Subhash M.; Sunder, G. Hema; Smith, Graham; Kennard, Collin H. L.
Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2004 , vol. 43, # 5 p. 952 - 956