Using CC(C)(C)OC(=O)CBr, COCc1cc(-c2nc(-c3cccc(CNC(C)C)c3)no2)ccc1-c1ccccc1C to produce COCc1cc(-c2nc(-c3cccc(CN(CC(=O)OC(C)(C)C)C(C)C)c3)no2)ccc1-c1ccccc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.