4-O-Benzyl-2,3-O-isopropylidene-l-threose (1), a new building block for the synthesis of carbohydrates was prepared. The stereoselective addition of various nucleophiles to 1 afforded useful intermediates toward l-sugar derivatives.
4-O-Benzyl-2,3-O-isopropidylene-l-threose (1) 是一种用于合成
碳水化合物的新结构单元。将各种亲核剂立体选择性地加成到 1 上,可以得到有用的中间体,进而得到 l-糖衍
生物。