Using COC(=O)C1(Cc2ccccc2)CN(Cc2ccccc2)CCC1C=O, CN to produce CN1CC2CCN(Cc3ccccc3)CC2(Cc2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.