Using C=CC(C)=O, O=C1CCN(Cc2ccccc2)CC1Cc1ccccc1 to produce O=C1C=C2CCN(Cc3ccccc3)CC2(Cc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.