treatment of hepatitis C virus. Three synthetic routes aimed at achieving the stereoselective installation of the C2′ gem-Br,F substitution and subsequent Vorbruggen glycosylation were explored to prepare the penultimate nucleoside intermediate. Development culminated in a route to ABBV-168 featuring a de novo chromatography-free furanose synthesis, protecting group-directed Vorbruggen glycosylation
ABBV-168是一种正在研究中的双卤代核苷酸,用于治疗丙型肝炎病毒。旨在实现C2'的立体选择性安装三个合成路线宝石-Br,F取代和随后的糖基化Vorbruggen进行了探索,以制备倒数第二
核苷中间体。开发达到了ABBV-168路线的最高要求,该路线的特点是无需从头进行色谱法合成
呋喃糖,保护基团导向的Vorbruggen糖基化和高度选择性的
磷酸酰胺化以提供A
PI。