Using C=C(C)CC(N)C(=O)OCC, O=S(=O)(Cl)c1ccc(Cl)cc1 to produce C=C(C)CC(NS(=O)(=O)c1ccc(Cl)cc1)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.