Using O=C(O)c1ccc(CBr)c([N+](=O)[O-])c1, OCc1ccccc1 to produce O=C(OCc1ccccc1)c1ccc(CBr)c([N+](=O)[O-])c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.