Using O=C([O-])O, CCOC1=N[C@H](C(C)C)C(OCC)=N[C@H]1C[C@H](Cc1ccc2cnn(CCCOC)c2c1)C(C)C to produce CCOC(=O)[C@@H](N)C[C@H](Cc1ccc2cnn(CCCOC)c2c1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.