1. For reviews, see: (a) Juaristi, E.; Quintana, D.; Escalante, J. Aldrichim. Acta 1994, 27, 3–11;
2. (b) Cole, D. C. Tetrahedron 1994, 50, 9517–9582;
3. (c) Cardillo, G., Tomasini, C. Chem. Soc. Rev. 1996, 25, 117–128;
4. (d) Enantioselective Synthesis of β-Amino Acids; Juaristi, E., Ed.; Wiley-VCH: New York, 1997;
5. (e) Juaristi, E.; López-Ruíz, H. Curr. Med. Chem. 1999, 6, 983–1004;