Using COc1c(O)ccc(C=O)c1[N+](=O)[O-], COC(=O)CBr to produce COC(=O)COc1ccc(C=O)c([N+](=O)[O-])c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.