作者:Debendra K. Mohapatra、Dhananjoy Mondal、Rajesh G. Gonnade、Mukund S. Chorghade、Mukund K. Gurjar
DOI:10.1016/j.tetlet.2006.06.117
日期:2006.8
An effective synthetic strategy for construction of the novel spiro-bicyclic β-lactone-γ-lactam system present in oxazolomycin has been demonstrated. The 3,4-disubstituted pyrrolidine ring system was constructed via an Evans aldol reaction. The spiro-β-lactone ring was elaborated from a gem-hydroxymethyl moiety that was successfully installed by an aldol followed by a crossed Cannizzaro reaction.
已经证明了一种有效的合成策略,用于构建恶唑霉素中存在的新型螺-双环β-内酯-γ-内酰胺系统。通过Evans aldol反应构建3,4-二取代的吡咯烷环系统。螺-β-内酯环是从阐述宝石被成功通过醛醇后跟一个交叉坎尼扎罗反应安装羟甲基部分。