Using Cn1cnc2cc([N+](=O)[O-])c([N+](=O)[O-])cc21, O=Cc1ccncc1 to produce Cn1cnc2cc3[nH]c(-c4ccncc4)nc3cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.