Using CCOCC, O=C(O)c1ccc(N2C[C@@H]3C[C@H]2CN3c2cccc(C(F)(F)F)c2)cc1F to produce COC(=O)c1ccc(N2C[C@@H]3C[C@H]2CN3c2cccc(C(F)(F)F)c2)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.