Using O=C(O)c1nc(Br)sc1-c1ccc(F)cc1, CC(C)(C)OC(=O)NC[C@@H]1CCCCN1 to produce CC(C)(C)OC(=O)NC[C@@H]1CCCCN1C(=O)c1nc(Br)sc1-c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.