Using CS(=O)(=O)c1ccc([N+]#N)cc1, COC(=O)CC(=O)CC(=O)OC to produce COC(=O)CC(=O)/C(=N\Nc1ccc(S(C)(=O)=O)cc1)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.