Using CC(C)(C)OC(=O)CC(=O)OC(C)(C)C, O=[N+]([O-])c1ccc(F)cc1F to produce CC(C)(C)OC(=O)C(C(=O)OC(C)(C)C)c1ccc([N+](=O)[O-])c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.