Using CC(C)(C)N1CCNCC1, CC(C)(C)OC(=O)N1CCC2(CCC(=O)CC2)CC1 to produce CC(C)(C)OC(=O)N1CCC2(CCC(N3CCN(C(C)(C)C)CC3)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.