Using CCCCc1nc(OC)c(C#N)n1Cc1ccc(-c2ccccc2S(=O)(=O)NC(C)=O)cc1 to produce CCCCc1nc(OC)c(C#N)n1Cc1ccc(-c2ccccc2S(N)(=O)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.