Using CCOC(=O)CC(=O)Nc1cc(C)c(Oc2ccc(OC)c(C(C)=O)c2)c2c1CCC2 to produce CCOC(=O)CC(=O)Nc1cc(C)c(Oc2ccc(O)c(C(C)=O)c2)c2c1CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.