Figure 5. Schematic representation of convergent synthesis of peptides.: resin; : functional group in the resin; : Nα amino protecting group; (Cl or NH2);  side-chain protecting groups; 1: cleavage and purification; 2: Nα deprotection; 3: Coupling; 4:  Nα deprotection, cleavage, side-chain deprotection, purification.


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