Using COC(=O)CC(=O)OC, O=[N+]([O-])c1ccc(CBr)cc1 to produce COC(=O)C(Cc1ccc([N+](=O)[O-])cc1)C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.