Using O=S(=O)(NC1CCCC1)c1ccc(Cl)nc1, COC(=O)CBr to produce COC(=O)CN(C1CCCC1)S(=O)(=O)c1ccc(Cl)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.