Using NC1(CCCCNC(=O)OCc2ccccc2)CCC(=O)NC1=O, O=C1OC(=O)c2ccccc21 to produce O=C1CCC(CCCCNC(=O)OCc2ccccc2)(N2C(=O)c3ccccc3C2=O)C(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.