Using COC(=O)C(c1ccccc1)N1C(=O)C(N=[N+]=[N-])C1Cl, Cc1nnc(S)s1 to produce COC(=O)C(c1ccccc1)N1C(=O)C(N=[N+]=[N-])C1Sc1nnc(C)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.