Using COC(=O)c1ccccc1C(=O)N1CCN(c2ccc(C(=O)NCCC3CC3)nn2)CC1 to produce O=C(NCCC1CC1)c1ccc(N2CCN(C(=O)c3ccccc3C(=O)O)CC2)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.