Using COC(=O)CCCNCC(=O)CCN1CCC(OC(=O)Nc2ccccc2-c2ccccc2)CC1 to produce O=C(O)CCCNCC(=O)CCN1CCC(OC(=O)Nc2ccccc2-c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.