A SYNTHETIC APPROACH TO (+)-THIENAMYCIN FROM METHYL (<i>R</i>)-3-HYDROXYBUTANOATE. A NEW ENTRY TO (3<i>R</i>, 4<i>R</i>)-3-[(<i>R</i>)-1-HYDROXYETHYL]-4-ACETOXY-2-AZETIDINONE
作者:Toshiyuki Chiba、Takeshi Nakai
DOI:10.1246/cl.1985.651
日期:1985.5.5
A new entry to the O-silylated form of the title azetidinone, a well-established key intermediate for thienamycin synthesis, is described which relies on the stereocontrolled transformation of the 2-azetidinone obtained via the condensation of methyl (R)-3-hydroxybutanoate with the N-silylimine of trimethylsilylpropynal.
本文描述了一种新的O-硅化形式的标题氮杂环酮,这是一种已久被确立为硫氨酮合成的关键中间体。该方法依赖于通过将乙基(R)-3-羟基丁酸酯与三甲基硅基丙炔醛的N-硅亚胺凝缩而得到的2-氮杂环酮的立体控制转化。