Using CC[C@@H]1C[C@H](Nc2ncc(Br)cn2)CN1C(=O)OC(C)(C)C, FC(F)(F)c1cc(CBr)cc(C(F)(F)F)c1 to produce CC[C@@H]1C[C@H](N(Cc2cc(C(F)(F)F)cc(C(F)(F)F)c2)c2ncc(Br)cn2)CN1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.