Using C1OCOCO1, O=C(NC1CNCC(c2ccccc2)C1)c1ccc2[nH]nc(-c3ccncc3)c2c1 to produce CN1CC(NC(=O)c2ccc3[nH]nc(-c4ccncc4)c3c2)CC(c2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.