Using CCCCc1nc(SC)c(C(=O)OCC)n1Cc1ccc(-c2ccccc2S(N)(=O)=O)cc1 to produce CCCCc1ncc(C(=O)OCC)n1Cc1ccc(-c2ccccc2S(N)(=O)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.