Using CCO, O=C1c2ccc(-c3ccccc3)cc2CCC1CCN1CCC(c2ccccc2)CC1 to produce O=C1c2ccc(CCc3ccccc3)cc2CCC1CCN1CCC(c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.