Using CC(=O)OC(C)=O, CC(C)c1ccc2oc(C(O)COc3ccc(C(=O)O)cc3)cc2c1 to produce CC(=O)OC(COc1ccc(C(=O)O)cc1)c1cc2cc(C(C)C)ccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.