Using CCCS(=O)c1ccc(C)c(C#Cc2cc(Cl)ccc2OCC(=O)OC)c1 to produce CCCS(=O)c1ccc(C)c(C#Cc2cc(Cl)ccc2OCC(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.