Using C=C(C(=O)OC)C(O)c1ccc(Cl)nc1, CC(=O)OC(C)=O to produce C=C(C(=O)OC)C(OC(C)=O)c1ccc(Cl)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.