Using Cc1c2c(=O)[nH]c3cc4ccccc4cc3c2nn1C(=O)OC(C)(C)C, CC(C)(C)OC(=O)NCCCBr to produce Cc1c2c(=O)n(CCCNC(=O)OC(C)(C)C)c3cc4ccccc4cc3c2nn1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.