Using O=[N+]([O-])c1cc(Br)ccc1Br, CCOC(=O)CC(=O)OCC to produce CCOC(=O)C(C(=O)OCC)c1ccc(Br)cc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.