Studies towards the synthesis of bielschowskysin. Construction of the highly functionalized bicyclo[3.2.0]heptane segment
作者:Anupam Jana、Sujit Mondal、Subrata Ghosh
DOI:10.1039/c4ob02182g
日期:——
A stereocontrolled approach for the construction of a highly functionalized bicyclo[3.2.0]heptane derivative embodying the bridged lactone present in the diterpene bielschowskysin is reported. The key step involves a stereoselective Cu(I)-catalyzed [2 + 2] photocycloaddition of a 1,6-diene embedded in a sugar derivative.
报道了一种立体控制的方法,该方法用于构建高度功能化的双环[3.2.0]庚烷衍生物,该衍生物包含存在于二萜比尔斯威斯基星中的桥连内酯。关键步骤涉及嵌入糖衍生物中的1,6-二烯的立体选择性Cu(I)催化[2 + 2]光环加成。