Using CCC(NCCN(C)C)c1nc2sc(Br)cc2c(=O)n1Cc1ccccc1 to produce CCC(NCCN(C)C)c1nc2sccc2c(=O)n1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.