Using O=C(O)Cc1cncc2ccccc12, Nc1scc(Br)c1-c1nnc[nH]1 to produce O=C(Cc1cncc2ccccc12)Nc1scc(Br)c1-c1nnc[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.