Using C=CCOc1cc(C(=O)CS(C)(=O)=O)cc(OCC=C)c1NC(C)=O to produce C=CCOc1cc(C(O)CS(C)(=O)=O)cc(OCC=C)c1NC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.