Using Cc1ccc(S(=O)(=O)N2CCC(NC(=O)OC(C)(C)C)C(O)c3ccccc32)cc1 to produce Cc1ccc(S(=O)(=O)N2CCC(NC(=O)OC(C)(C)C)=Cc3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.