Using O=C(CCc1ccc(O)c([N+](=O)[O-])c1)CCc1ccc(O)c([N+](=O)[O-])c1 to produce Nc1cc(CCC(=O)CCc2ccc(O)c(N)c2)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.