Using CCC[Zn+], CCOC(=O)c1c(CS(=O)(=O)c2ccccc2)ccc(Br)c1OC to produce CCCc1ccc(CS(=O)(=O)c2ccccc2)c(C(=O)OCC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.