Using NC(=O)c1ccc2[nH]c(-c3ccc(C(O)c4ccc(Cl)cc4)cc3)nc2c1 to produce NC(=O)c1ccc2[nH]c(-c3ccc(Cc4ccc(Cl)cc4)cc3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.