Using Cc1cc(Nc2nc(C(=O)c3ccc(F)c(Cl)c3)nc3ccccc23)n[nH]1 to produce Cc1cc(Nc2nc(C(O)c3ccc(F)c(Cl)c3)nc3ccccc23)n[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.