Using O=C([O-])[O-], CCOC(=O)C1=CC2(CCC1S(=O)(=O)Nc1ccc(F)cc1Cl)O[C@H](CO)[C@@H](CO)O2 to produce CCOC(=O)C1=CC2(CCC1S(=O)(=O)N(C)c1ccc(F)cc1Cl)O[C@H](CO)[C@@H](CO)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.