a. Draw the structures of lysine and aspartic acid (with correct stereochemistry). From their chemical structures, what

[answerhappygod]

a. Draw the structures of lysine and aspartic acid (with correct
stereochemistry). From their chemical structures, what precautions
must be taken before these two amino acids can be used properly for
solid phase peptide synthesis? Specify why.
b. Draw the structure of the tetrapeptide CHEM with all L-amino
acids ensuring proper stereochemistry.