Using NCc1ccccc1, O=C(O)c1cnc(O)c(C(=O)NCc2ccccc2)c1 to produce O=C(O)c1c[nH]c(=O)c(C(=O)N(Cc2ccccc2)Cc2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.