Using NNc1ccc(F)cc1F, C[C@]12CC(C=O)C(=O)C=C1CC[C@@H]1[C@@H]2[C@@H](O)C[C@@]2(C)[C@H]1CC[C@@]21OCOC12COCO2 to produce C[C@@]12Cc3cnn(-c4ccc(F)cc4F)c3C=C1CC[C@H]1[C@H]2[C@H](O)C[C@]2(C)[C@@H]1CC[C@]21OCOC12COCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.