Using Nc1cc(-c2cccc(Cl)c2)n[nH]1, COC(=O)CC(C(C)=O)C(=O)OC to produce COC(=O)Cc1c(C)nc2cc(-c3cccc(Cl)c3)nn2c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.