Using CC1(N)CCC(=O)NC1=O, COC(=O)c1ccc(Br)cc1CBr to produce CC1(N2Cc3cc(Br)ccc3C2=O)CCC(=O)NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.