Studies towards the synthesis of the zaragozic acids: Synthesis of the bicyclic acetal core of zaragozic acid C
作者:Ian Paterson、Klaus Feßner、M.Raymond V. Finlay
DOI:10.1016/s0040-4039(97)00885-x
日期:1997.6
The bicyclic core 6 of zaragozicacid C (7) was prepared by the epoxide cyclisation reaction 21 → 22 → 15. Acetal 15 was also obtained by acid-promoted rearrangement of the isomeric acetal 19.