Using Cc1cc2c(F)c(Oc3cc(COCc4ccccc4)ncn3)ccc2[nH]1 to produce Cc1cc2c(F)c(Oc3cc(CO)ncn3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.