Using COCCOCCBr, NS(=O)(=O)c1ccc(N[C@@H]2CCNC2)c([N+](=O)[O-])c1 to produce COCCOCCN1CC[C@@H](Nc2ccc(S(N)(=O)=O)cc2[N+](=O)[O-])C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.