Using Nc1ncc(CCC(=O)O)nc1Br, CN(C)C(On1nnc2ccccc21)=[N+](C)C to produce CNC(=O)CCc1cnc(N)c(Br)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.