1. Elbein, D. A.; Molyneux, R. In Alkaloids; Chemical and Biological Perspectives; Pelletier, S. W., Ed.; John Wiley & Son, 1987; Vol. 57.
2. Pyrrole, pyrrolidine, pyridine, piperidine and tropane alkaloids (1998 to 1999)
3. Stereoselective Synthesis of Piperidines
4. Recent advances in the synthesis of piperidones and piperidines
5. Annulation reaction of α,β-unsaturated imines, which are mono-reduced derivatives of α,β-unsaturated amides, are well investigated: (a) Boger, D. L.; Weinreb, S. M. Hetero Diels–Alder Methodology in Organic Synthesis; Academic Press: San Diego, 1987; pp. 240–255; (b) Jayakumar, S.; Ishar, M. P. S.; Mahajan, M. P. Tetrahedron 2002, 58, 379–471; (c) Wei, L.-L.; Hsung, R. P.; Sklenicka, H. M.; Gerasyuto, A. I. Angew. Chem., Int. Ed. 2001, 40, 1516–1518.