Using CC(C)(C)OC(=O)NCCc1ccc(NS(=O)(=O)C=Cc2ccccc2)cc1 to produce CC(C)(C)OC(=O)NCCc1ccc(NS(=O)(=O)CCc2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.