Using O=c1[nH]cc(-c2ccncc2)cc1N[C@@H]1CCCNC1, O=C(Cl)CCl to produce O=C(CCl)N1CCC[C@@H](Nc2cc(-c3ccncc3)c[nH]c2=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.