Using COC(=O)C1CC(Oc2ccc(F)cc2F)CN1C(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CC(Oc2ccc(F)cc2F)CC1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.