Using COC(=O)c1cccc(S(=O)(=O)NCC2(C(=O)OC(C)(C)C)CCC2)c1 to produce CC(C)(C)OC(=O)C1(CNS(=O)(=O)c2cccc(C(=O)O)c2)CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.