Using CC1Cc2nc(NCC(F)F)c(N3CCC(Oc4ccc(F)cc4F)CC3)nc2CN1Cc1ccccc1 to produce CC1Cc2nc(NCC(F)F)c(N3CCC(Oc4ccc(F)cc4F)CC3)nc2CN1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.