Using COc1ccc(-n2nc(C3(O)CCC4(CC3)OCCO4)cc2-c2ccc(C)nc2)cc1 to produce COc1ccc(-n2nc(C3(O)CCC(=O)CC3)cc2-c2ccc(C)nc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.