Using O=C(Nc1c(O)nc(Cc2ccc(Cl)cc2)nc1O)c1cccc(F)c1 to produce O=c1[nH]c(Cc2ccc(Cl)cc2)nc2oc(-c3cccc(F)c3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.