Using CC(C)N1CCNCC1, CC(C)(C)OC(=O)N[C@H]1CC[C@H](C(=O)O)CC1 to produce CC(C)N1CCN(C(=O)[C@H]2CC[C@H](NC(=O)OC(C)(C)C)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.