Using CCCC(=O)c1cnc2c(COC(=O)c3ccc(OC)cc3)cccc2c1Nc1ccc(O)cc1C to produce CCCC(=O)c1cnc2c(CO)cccc2c1Nc1ccc(O)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.