Stereochemistry of a-Amino Acids COOH CHO COOH HO C R H H COOH CHO COOH H HO H H2N H CH3 CH2OH R L-alanine L-(-)-glyceraldehyde an L-amino acid (S)-alanine (S)-glyceraldehyde (S)configuration Copyright2005 Pearson Prentice Hall,Inc. => Chapter 24 5Chapter 24 5 Stereochemistry of -Amino Acids =>