Using O=c1[nH]nc(C2CCN(c3ccc(/N=C/c4ccc([N+](=O)[O-])o4)cc3)CC2)o1 to produce O=c1[nH]nc(C2CCN(c3ccc(NCc4ccc([N+](=O)[O-])o4)cc3)CC2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.