Using C[C@@H](c1ccc(Br)cc1)N1CC[C@@](CCCS(=O)(=O)[O-])(c2ccccc2)OC1=O, O=S1(=O)CCCN1 to produce C[C@@H](c1ccc(Br)cc1)N1CC[C@](CCN2CCCS2(=O)=O)(c2ccccc2)OC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.