Using CCOC(=O)CC(=O)C1CCN(C(=O)OC(C)(C)C)CC1, N=C(N)N1CCCCC1 to produce CC(C)(C)OC(=O)N1CCC(c2cc(O)nc(N3CCCCC3)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.