Using COC(=O)[C@H]1CC[C@H](C(=O)O)CC1, CC(C)(C)c1cccc(NC(=O)c2ccc(N3CCNCC3)nc2)c1 to produce COC(=O)C1CCC(C(=O)N2CCN(c3ccc(C(=O)Nc4cccc(C(C)(C)C)c4)cn3)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.