Using Nc1ncccc1C=O, CCOC(=O)CN1C(=O)[C@@H](CCC(C)=O)C[C@H]1Cc1ccccc1 to produce CCOC(=O)CN1C(=O)[C@@H](CCc2ccc3cccnc3n2)C[C@H]1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.