Using COc1ccc(-c2cc(S(=O)(=O)CCNC(=O)OC(C)(C)C)c3ccncc3c2)cc1 to produce NCCS(=O)(=O)c1cc(-c2ccc(O)cc2)cc2cnccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.