Synthesis of oxapenam derivatives.
作者:SADAO OIDA、AKIRA YOSHIDA、EIJI OHKI
DOI:10.1248/cpb.26.448
日期:——
Photolysis of N-diazoacetyloxazolidine compounds, 7c and 8c, afforded oxapenams, 9 and 10, respectively. The physical data of 9 and 10 along with their behavior on thinlayer chromatograms were consistent with that of the samples derived from clavulanic acid (1), a β-lactamase inhibitor, confirming their structures. Further, a methylene oxapenam 18 was obtained from an oxapenam 17 having a phenylseleno group by selenoxide elimination reaction.
对 N-重氮乙酰基恶唑烷化合物 7c 和 8c 进行光解后,分别得到了草萘胺 9 和 10。9 和 10 的物理数据及其在薄层色谱上的表现与从β-内酰胺酶抑制剂克拉维酸(1)中得到的样品一致,从而证实了它们的结构。此外,通过亚硒氧消除反应,从具有苯基硒基的氧杂萘 17 中得到了亚甲基氧杂萘 18。