Using O=C(O)[C@H]1Cc2ccccc2CN1, O=[N+]([O-])c1ccc(-c2ccc(S(=O)(=O)Cl)cc2)cc1 to produce O=C(O)[C@H]1Cc2ccccc2CN1S(=O)(=O)c1ccc(-c2ccc([N+](=O)[O-])cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.