Using CCOC(=O)C[C@H]1CC[C@H](c2ccc(-c3cc(C(F)(F)F)[nH]n3)cc2)CC1 to produce O=C(O)C[C@H]1CC[C@H](c2ccc(-c3cc(C(F)(F)F)[nH]n3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.