Using NC(=O)c1ccnc(N)c1, O=C(O)COc1ccc([N+](=O)[O-])cc1 to produce NC(=O)c1ccnc(NC(=O)COc2ccc([N+](=O)[O-])cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.