Using CCCCC(F)C(O)C=CC1C(OC(=O)c2ccccc2)CC2OC(=O)CC21 to produce CCCCC(F)C(O)CCC1C(OC(=O)c2ccccc2)CC2OC(=O)CC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.