作者:Gary A. Molander、Michael S. Quirmbach、Luiz F. Silva、Keith C. Spencer、Jaume Balsells
DOI:10.1021/ol015763l
日期:2001.7.1
toward the total synthesis of the sesterterpenoid variecolin (1) is presented. Synthesis of the key hemiketal, containing the core ABCringskeleton, has been achieved on a model system by an expeditious route utilizing samarium(II) iodide. Furthermore, enantioselective syntheses of component fragments for the total synthesis have been developed.