Using COC(=O)c1cc(OCC(=O)C(C)(C)C)n(-c2ccccc2F)n1 to produce CC(C)(C)C(=O)COc1cc(C(=O)O)nn1-c1ccccc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.