Using CCCc1cc(CC(=O)OC)ccc1OC1COc2ccc(C(C)=O)c(O)c2C1 to produce CCCc1cc(CC(=O)O)ccc1OC1COc2ccc(C(C)=O)c(O)c2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.