Using CC[C@]12CC[C@](O)(C(F)(F)F)C[C@H]1CCCc1cc3c(cnn3-c3ccc(F)cc3)cc12 to produce CC[C@]12CC[C@](O)(C(F)(F)F)C[C@H]1CC=Cc1cc3c(cnn3-c3ccc(F)cc3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.