Using CCOC(=O)CCc1ccc(OCC2CCCC2)nc1, O=C1CCC(=O)N1Br to produce CCOC(=O)CCc1cnc(OCC2CCCC2)c(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.