Using O=C1CCC(=O)N1Br, O=C1CCc2cc(-c3ccoc3-c3ccncc3)ccc21 to produce O=C1CCc2cc(-c3cc(Br)oc3-c3ccncc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.