Using OCC(O)CCl, O=C(Cn1cncn1)c1ccc(Cl)cc1OC(F)F to produce FC(F)Oc1cc(Cl)ccc1C1(Cn2cncn2)OCC(CCl)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.