Using CCN(c1cc(Br)cc(C(=O)OC)c1C)[C@H]1CC[C@H](N(C)C(=O)OC(C)(C)C)CC1 to produce CCN(c1cc(Br)cc(C(=O)OC)c1C)[C@H]1CC[C@H](NC)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.