Using CCc1ccc(Br)cc1C1C(=O)C2CCC(C2)C1=O, Cc1cscn1 to produce CCc1ccc(-c2nc(C)cs2)cc1C1C(=O)C2CCC(C2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.