Using CCOC(=O)C(Cc1cccc(OC(F)(F)C(F)F)c1)C(O)c1cccc(F)c1 to produce O=C(O)C(Cc1cccc(OC(F)(F)C(F)F)c1)C(O)c1cccc(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.