Using CCOC(=O)CCC(=O)c1ccc(CCCCN2CCN(c3cccc(C)c3)CC2)cc1 to produce Cc1cccc(N2CCN(CCCCc3ccc(C(=O)CCC(=O)O)cc3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.