Using O=C(O)c1ccc(Br)o1, NC(=O)C12CC3CC(C1)C(N)C(C3)C2 to produce NC(=O)C12CC3CC(C1)C(NC(=O)c1ccc(Br)o1)C(C3)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.