Using N#CCN(N=O)N1CCN(CC(=O)c2ccccc2)CC1 to produce N=c1c[n+](N2CCN(CC(=O)c3ccccc3)CC2)[n-]o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.