Using Sc1nc2ccccc2o1, CSc1nc(C)ccc1NC(=O)CCCCCCCCBr to produce CSc1nc(C)ccc1NC(=O)CCCCCCCCSc1nc2ccccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.