Using CC(C)(C)C(=O)OCCOc1ccc(/C(=C(/CCCl)c2ccccc2)c2ccccc2)cc1 to produce OCCOc1ccc(/C(=C(/CCCl)c2ccccc2)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.