Using CC1(C)C(=O)NC(=O)N1c1nc2c(s1)CCOc1cc(Br)ccc1-2 to produce CC1(C)C(=O)NC(=O)N1c1nc2c(s1)CCOc1ccccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.