Using N[C@@H](CS)C(=O)O, O=Cc1ccc([N+](=O)[O-])cc1 to produce O=C(O)[C@@H]1CSC(c2ccc([N+](=O)[O-])cc2)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.