Using CCOC(=O)c1[nH]nc(C(=O)c2ccccc2)c1C(=O)c1ccc(Cl)cc1N to produce O=C(c1ccccc1)c1n[nH]c2c(=O)[nH]c3cc(Cl)ccc3c(=O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.