作者:Jason C. Rech、Paul E. Floreancig
DOI:10.1021/ol034273l
日期:2003.5.1
system is a key structural component of the architecturally interesting anticancer and immunosuppressive agents of the mycalamide, theopederin, and onnamide families of natural products. We report a new entry into this structure in which a mixed acetal serves as a surrogate for a formaldehyde hemiacetal in an addition to an oxidatively generated acyliminium ion. The stereochemical outcome of this process
酰胺基三氧杂环丁烷环系统是天然产物Mycalamide,Theopederin和Onnamide家族在结构上令人关注的抗癌和免疫抑制剂的关键结构组成部分。我们报道了一种新的进入这种结构的方法,其中混合乙缩醛可作为甲醛半缩醛的替代品,此外还可以氧化生成的酰基酰亚胺离子。该过程的立体化学结果可以通过产物环系统的构象偏好来解释。[反应:看文字]