Using O=C([O-])CC(=O)CN1C(=O)c2ccccc2Nc2ncccc21, COC(=O)CC(=O)CN1C(=O)c2ccccc2Nc2ncccc21 to produce COC(=O)Cc1cn2c(n1)-c1ccccc1Nc1ncccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.