Using Fc1cnc(OCc2ccccc2)nc1OCCc1ccc(Oc2ccc(Cl)c(C(F)(F)F)c2)cc1 to produce O=c1nc(OCCc2ccc(Oc3ccc(Cl)c(C(F)(F)F)c3)cc2)c(F)c[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.