Using CSc1ncccc1NC(=O)CCCCCCCCBr, Sc1nc2ccccc2o1 to produce CSc1ncccc1NC(=O)CCCCCCCCSc1nc2ccccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.