Using Cc1ccc(-c2cccc3c2c(=O)c(CO)nn3Cc2ccccc2)c(C)c1 to produce Cc1ccc(-c2cccc3c2c(=O)c(C=O)nn3Cc2ccccc2)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.