Using CC(C)(C)OC(=O)N[C@@H](C(=O)O)C(C)(C)C, Cc1cc(N2CCNCC2)ccn1 to produce Cc1cc(N2CCN(C(=O)[C@H](NC(=O)OC(C)(C)C)C(C)(C)C)CC2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.