Using CNC(=O)c1cc(Cl)ccn1, Oc1ccc2nc(N[C@@H]3CCCC[C@H]3O)sc2c1Br to produce CNC(=O)c1cc(Oc2ccc3nc(N[C@@H]4CCCC[C@H]4O)sc3c2Br)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.