Using Cc1cc(Br)cc2ncnc(Nc3ccc(F)cc3OCc3ccccc3)c12 to produce Cc1cc(Br)cc2ncnc(Nc3ccc(F)cc3O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.