2,3-<i>O</i>-Isopropylidene-<scp>L</scp>-apiono-1,4-lactone [(3<i>S</i>,4<i>S</i>)-3,4-dihydroxy-4-(hydroxymethyl)-3,4-di-<i>O</i>-isopropylidene-4,5-dihydrofuran-2(3<i>H</i>)-one]
Acta crystallographica. Section E