Using Cc1nc(-c2cc(-c3ccc(N)nc3)n(C)n2)no1, O=C(Cl)c1ccccc1Cl to produce Cc1nc(-c2cc(-c3ccc(NC(=O)c4ccccc4Cl)nc3)n(C)n2)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.