Using CCCCC(F)(F)C(C)(O)C=CC1CCC(=O)N1CC(O)CCCCCO, O=[Cr](=O)([O-])O[Cr](=O)(=O)[O-] to produce CCCCC(F)(F)C(C)(O)C=CC1CCC(=O)N1CC(=O)CCCCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.