First Synthetic Access to 6-(Methylene)oxapenems: A New Class of β-Lactamase Inhibitors
作者:Hanno Wild、Wolfgang Hartwig
DOI:10.1055/s-1992-26314
日期:——
The first synthetic route to racemic 6-(substituted methylene)oxapenems, an interesting new class of ß-lactamase inhibitors, is described. In spite of their low hydrolytic stability, even the unprotected acids 9 and 10 can be isolated as their sodium salts. The 6-(unsubstituted methylene)oxapenem 7e, however, is unstable and decomposes under the conditions of its formation.
本文介绍了外消旋 6-(取代亚甲基)氧杂苊烯肟的第一条合成路线,这是一类有趣的新型 ß-内酰胺酶抑制剂。尽管它们的水解稳定性较低,但即使是未受保护的酸 9 和 10 也能以钠盐的形式分离出来。然而,6-(未取代亚甲基)氧沙培南 7e 并不稳定,在其形成条件下会分解。