1. (a) Chemistry and Biochemistry of the Amino Acids; Barrett, G. C., Ed. Chapman and Hall: London, 1985. (b) Greenstein, J. P.; Winitz, M. Chemistry of the Amino Acids; Wiley, 1961; Vol. 1–3. (c) Coppala, G. M.; Schuster, H. F. Asymmetric Synthesis: Construction of Chiral Molecules Using Amino Acids; Wiley: New York, 1987. (d) Hanessian, S. Total Synthesis of Natural Products: The Chiron Approach; Pergamon Press: Oxford, 1983. (e) Williams, R. M. In Organic Chemistry Series Volume 7: Synthesis of Optically Active α-Amino Acids; Baldwin, J. E.; Magnus, P. D., Eds.; Pergamon Press: Oxford, 1989. (f) Duthaler, O. R. Tetrahedron 1994, 50, 1539. (g) Kunz, H. In Stereoselective Synthesis; Helmechen, G.; Hoffmann, R. W.; Mulzer, J.; Schaumann, E., Eds.; Georg Theime Verlag: Stuttgart 1995; Vol. E21b, p. 1931.
2. (b) Greenstein, J. P.; Winitz, M. Chemistry of the Amino Acids; Wiley, 1961; Vol. 1–3.
3. (c) Coppala, G. M.; Schuster, H. F. Asymmetric Synthesis: Construction of Chiral Molecules Using Amino Acids; Wiley: New York, 1987.
4. (d) Hanessian, S. Total Synthesis of Natural Products: The Chiron Approach; Pergamon Press: Oxford, 1983.
5. (e) Williams, R. M. In Organic Chemistry Series Volume 7: Synthesis of Optically Active α-Amino Acids; Baldwin, J. E.; Magnus, P. D., Eds.; Pergamon Press: Oxford, 1989.