Using COC(=O)Cl, Nc1ccc2c(c1)OCCc1cc(-c3nncn3-c3ccccc3Cl)sc1-2 to produce COC(=O)Nc1ccc2c(c1)OCCc1cc(-c3nncn3-c3ccccc3Cl)sc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.