Using CC(=O)OC(C)=O, NC1CC(Cc2ccccc2)N(C(=O)OCc2ccccc2)CCC1O to produce CC(=O)NC1CCN(C(=O)OCc2ccccc2)CCC1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.