Using CI, OC1CCN(c2nc3c(-c4ccccc4F)nnn3c3ccccc23)CC1 to produce COC1CCN(c2nc3c(-c4ccccc4F)nnn3c3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.