Using CS(=O)(=O)Cl, CC1(C)CNCC1Nc1c(C(N)=O)cnn2cc(Br)cc12 to produce CC1(C)CN(S(C)(=O)=O)CC1Nc1c(C(N)=O)cnn2cc(Br)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.