Using CC(C)(C)c1csc(CBr)n1, CC(=O)c1ccc(O)c(C=O)c1 to produce CC(=O)c1ccc2oc(-c3nc(C(C)(C)C)cs3)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.