Using CNC(=O)[C@@H](NC(=O)c1ccc(-c2ccc3cc(C(=O)O)[nH]c3c2)o1)C1CCCCC1, C1COCCN1 to produce CNC(=O)[C@@H](NC(=O)c1ccc(-c2ccc3cc(C(=O)N4CCOCC4)[nH]c3c2)o1)C1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.