Using Oc1ccccc1, O=C(c1ccccc1F)N1CCc2nc(CCl)sc2C1 to produce O=C(c1ccccc1F)N1CCc2nc(COc3ccccc3)sc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.