Using O=C(Nc1cc(-c2cccs2)ccc1[N+](=O)[O-])OCC1CCCCC1 to produce Nc1ccc(-c2cccs2)cc1NC(=O)OCC1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.