Using CCOC(=O)CC(=O)c1ccc2[nH]nnc2c1, Nc1nc(-c2cccc(Cl)c2)n[nH]1 to produce O=c1cc(-c2ccc3[nH]nnc3c2)[nH]c2nc(-c3cccc(Cl)c3)nn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.