Using C[Zn]Cl, COC(=O)c1ccc(-c2ccc3cc(OC)ccc3c2Br)cc1 to produce COC(=O)c1ccc(-c2ccc3cc(OC)ccc3c2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.