| 摘要 |
<p>An improved process for the preparation and isolation of esters of (S)-3,4-O-isopropylidine-3,4-dihydroxybutanoic acid, cyclic orthoesters of (S)-3,4-dihydroxybutanoic acid, and (S)-3-hydroxybutyrolactone in a one pot process from a carbohydrate substrate is described.</p> |
