Using COCCO, CC(c1ccc(-c2ccccc2F)cc1)S(=O)CC(=O)O to produce COCCOC(=O)CS(=O)C(C)c1ccc(-c2ccccc2F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.