作者:Tomohiro Nagasawa、Shigefumi Kuwahara
DOI:10.1016/j.tetlet.2009.12.032
日期:2010.2
The first synthesis of aspergillide A, a cytotoxin produced by a marine-derived fungus, has been achieved from a synthetic intermediate of aspergillide B by using a proline-mediated epimerization of a 2,6-trans-substituted tetrahydropyran-2-acetaldehyde intermediate into the corresponding cis-isomer via a retro-oxy-Michael/oxy-Michael sequence as the key transformation.
曲霉内酯A的第一次合成是由海洋真菌产生的细胞毒素,它是由曲霉内酯B的合成中间体通过脯氨酸介导的2,6-反式取代的四氢吡喃-2-乙醛中间体差向异构化成相应的顺式异构体通过反-氧-迈克尔/氧-迈克尔序列作为关键转化。