Using CCOC(=O)COC(C)(C)C(F)(F)[C@](C)(N)c1cc(Br)ccc1F to produce CC1(C)OCC(=O)N[C@](C)(c2cc(Br)ccc2F)C1(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.