Using CC(C)(C)OC(=O)N1CCN(C(=O)OCc2ccc(OC(F)(F)F)cc2)CC1 to produce O=C(OCc1ccc(OC(F)(F)F)cc1)N1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.