Using C[C@@H](O)[C@H](NC(=O)OC(C)(C)C)C(=O)O, CC1(C)CCC(C)(C)c2cc(-c3cccc(N4CCNCC4)n3)ccc21 to produce CC(O)[C@H](N)C(=O)N1CCN(c2cccc(-c3ccc4c(c3)C(C)(C)CCC4(C)C)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.