1. Laszlo, P. Organic Reactions: Simplicity and Logic; Wiley: New York, 1995; p 696.
2. Advances in Indolizine Chemistry
3. Greenhill, J. V. In Comprehensive Heterocyclic Chemistry: The Structure, Reactions, Synthesis and Uses of Heterocyclic Compounds; Katritzky, A. R., Rees, C. W., Eds. Pergamon Press: London, 1984; Vol. 5, p 302.
4. Elguero, J. In Comprehensive Heterocyclic Chemistry II: A Review of the Literature 1982-1995: The Structure, Reactions, Synthesis, and Uses of Heterocyclic Compounds; Katritzky, A. R., Rees, C. W., Scriven, E. V. F., Eds. Pergamon Press: London, 1996; Vol. 3, pp 1–75.
5. Tricyclic pyrazoles. Part 2: Synthesis and biological evaluation of novel 4,5-dihydro-1H-benzo[g]indazole-based ligands for cannabinoid receptors