Using C1=COCCC1, O=C(N1CCc2c(O)cccc2C1)C(F)(F)F to produce O=C(N1CCc2c(cccc2OC2CCCCO2)C1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.