Using O=C(OCc1ccccc1)ON1C(=O)CCC1=O, CC(C1CCNCC1)C1CC1 to produce CC(C1CC1)C1CCN(C(=O)OCc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.