Using CCOC(=O)COc1ccc(C(CC)(CC)c2ccc(OCC(=O)O)c(C)c2)cc1C to produce CCOC(=O)COc1ccc(C(CC)(CC)c2ccc(OCCO)c(C)c2)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.