Using CCOC(=O)CC(=O)O, Cc1nc2ccccc2nc1-c1cc(N)[nH]n1 to produce CCOC(=O)CC(=O)Nc1cc(-c2nc3ccccc3nc2C)n[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.