Using CCOC(=O)c1sc(S(C)(=O)=O)c(C#N)c1-c1ccc(-c2ccccc2C#N)cc1 to produce CCOC(=O)c1scc(C#N)c1-c1ccc(-c2ccccc2C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.