作者:Braja Pradhan、Naresh Vempala、Settipalli Venkateswara Rao、Anireddy Shree
DOI:10.1055/s-0035-1562787
日期:——
Abstract A novel asymmetric synthesis of a (3R,5S)-dihydroxyhexanoic ester is described. The ester, which serves as the precursor for generating the side chain of rosuvastatin, is synthesized from d-glucose and subsequently coupled, under Wittig olefination conditions, with a phosphonium ylide derived from an appropriately substituted pyrimidine moiety. The coupling results in the formation of a precursor
摘要 描述了(3 R,5 S)-二羟基己酸酯的新型不对称合成。由d-葡萄糖合成酯,该酯用作产生瑞舒伐他汀侧链的前体,然后在维蒂希烯化条件下与衍生自适当取代的嘧啶部分的叶立德coupled偶联。偶联导致形成包含瑞舒伐他汀的所有结构特征的前体。按照公认的程序,该前体转化为瑞舒伐他汀钙。 描述了(3 R,5 S)-二羟基己酸酯的新型不对称合成。由d-葡萄糖合成酯,该酯用作产生瑞舒伐他汀侧链的前体,然后在维蒂希烯化条件下与衍生自适当取代的嘧啶部分的叶立德coupled偶联。偶联导致形成包含瑞舒伐他汀的所有结构特征的前体。按照公认的程序,该前体转化为瑞舒伐他汀钙。