Using CCc1n[nH]c(CC)c1Cc1cc(Cl)cc(Cl)c1, COC(=O)CCBr to produce CCc1nn(CCC(=O)OC)c(CC)c1Cc1cc(Cl)cc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.