Using Cc1ccc(-c2nc(OC(C)C)cc(OC(C)C)n2)cc1, O=C1CCC(=O)N1Br to produce Cc1ccc(-c2nc(OC(C)C)c(Br)c(OC(C)C)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.