Using CCCN(C)c1cc(C(=O)OC)cc(N(C)S(C)(=O)=O)n1 to produce CCCN(C)c1cc(C(=O)O)cc(N(C)S(C)(=O)=O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.