Using CCOC(=O)c1ccccc1[Zn+], O=C(Cl)C1(c2ccccc2)CC1 to produce CCOC(=O)c1ccccc1C(=O)C1(c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.