Using CS(=O)(=O)CCCBr, COC(=O)c1[nH]c2ccncc2c1Br to produce COC(=O)c1c(Br)c2cnccc2n1CCCS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.