Using CN(Cc1ccc(/C=C/C(=O)Nc2ccc(-c3ccc(Cl)cc3)cc2)cc1)C1CCOCC1 to produce CN(Cc1ccc(CCC(=O)Nc2ccc(-c3ccc(Cl)cc3)cc2)cc1)C1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.