Using CC(C)(C)OC(=O)C[C@@H](CCCC1CCCCC1)c1nc(CN)no1, O=C(ON1C(=O)CCC1=O)ON1C(=O)CCC1=O to produce CC(C)(C)OC(=O)C[C@@H](CCCC1CCCCC1)c1nc(CNC(N)=O)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.