This picture shows the coupling step in solid peptide synthesis. The picture was drawn according to a synthesis described by L. P. Miranda [1].
The amino acid chain AAHYHTHKE with side chain protecting groups is bonded with glutamate (E) to a PAM resin. For the next coupling step, lysine is shown close to the end of the chain. Lysine is protected with Boc (Nα) and 2-chloro-benzyl-oxy-carbonyl (sidechain). It is activated with OBt.
{{Information |Description=Ball and stick visualisation of a solid phase peptide synthesis |Source=own work (drawn in PyMOL) |Date=2006-08-11 |Author=Felix Plasser }}