Using COC(=O)c1ccc2cc[nH]c(=O)c2c1, CC(C)(C)OC(=O)NCCCBr to produce COC(=O)c1ccc2ccn(CCCNC(=O)OC(C)(C)C)c(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.