Using O=[N+]([O-])O, CCOC(=O)c1cc(OC)c(O)cc1C(=O)c1ccccc1 to produce CCOC(=O)c1cc(OC)c(O)c([N+](=O)[O-])c1C(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.