Using CN(C=O)Cc1ccc(N)c(C(=O)O)c1, O=C(n1ccnc1)n1ccnc1 to produce CN(C=O)Cc1ccc2[nH]c(=O)oc(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.