Using CCOC(=O)/C=C/c1cc(OC)c(Cl)cc1NS(C)(=O)=O to produce COc1cc(/C=C/C(=O)O)c(NS(C)(=O)=O)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.