Using O=C(N[C@H]1CC[C@@H]2CN(Cc3ccccc3)C[C@@H]21)C(c1ccc(F)cc1)c1ccc(F)cc1 to produce O=C(N[C@H]1CC[C@@H]2CNC[C@@H]21)C(c1ccc(F)cc1)c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.