Using CCCCOc1ccc(S(=O)(=O)N[C@H]2CC(=O)N(OCc3ccccc3)C2=O)cc1 to produce CCCCOc1ccc(S(=O)(=O)N[C@H]2CC(=O)N(O)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.