Using COc1ccc(Oc2ccc(-c3noc(-c4ccc(F)cc4)n3)cc2)cc1 to produce Oc1ccc(Oc2ccc(-c3noc(-c4ccc(F)cc4)n3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.