Using O=C(OO)c1cccc(Cl)c1, CCOC(=O)C(C)(C)Oc1ccc(C(C)=O)cc1C to produce CCOC(=O)C(C)(C)Oc1ccc(OC(C)=O)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.