Using CC(C)(C)OC(=O)N[C@@H]1CC[C@@H](c2cccc(F)c2F)Cn2c(C(C)(C)O)cnc21 to produce CC(C)(O)c1cnc2n1C[C@H](c1cccc(F)c1F)CC[C@H]2N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.