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6
Biologically Important
Amino Acids
Non-α-amino acids are known to play a prominent role in nature and in important
biological compounds. Indeed, there are many examples of non-α-amino acids that
possess important biological properties. This chapter discusses several types of these
amino acids in order to illustrate both the impetus for synthesizing amino acids and
the various structural types that are found. Those synthetic approaches presented
in this chapter span the range of methods presented in the rst ve chapters, and
include some new strategies as well.
6.1 PEPTIDES AND PROTEINS
6.1.1 as Residues in PePtides and PRoteins
Natural p ...