Using CS(N)(=O)=O, Cc1ccc([N+](=O)[O-])cc1C(=O)O to produce Cc1ccc([N+](=O)[O-])cc1C(=O)NS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.