Using CC(=O)[O-], CCCCc1nc(=O)c2cc(CBr)ccc2[nH]1 to produce CCCCc1nc(=O)c2cc(COC(C)=O)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.