Using CCN(CC)C(=O)c1ccc(C(O)c2cccc3cccnc23)cc1 to produce CCN(CC)C(=O)c1ccc(C(=O)c2cccc3cccnc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.