Using CC(=O)N(C)Cc1ccc(Cl)c(Cl)c1, COC(=O)C(=O)OC to produce COC(=O)C(O)=CC(=O)N(C)Cc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.