作者:Daniel P. Canterbury、Glenn C. Micalizio
DOI:10.1021/ol200627d
日期:2011.5.6
A convergent synthesis of the CDEF-tetracyclic region of pectenotoxin-2 (PTX-2) is described. The synthetic pathway derives from a head-to-tail union of 2 equiv of linalool to establish a stereodefined DEF-tricyclic aldehyde. Subsequent coupling with a “northern” fragment enolate, followed by a tandem Sharpless epoxidation/cyclization, delivers the C10−C26 polycyclic region of the natural product.
描述了 pectenotoxin-2 (PTX-2) 的 CDEF-四环区域的会聚合成。合成途径源自 2 当量芳樟醇的头尾结合,以建立立体定义的 DEF-三环醛。随后与“northern”片段烯醇化物偶联,然后串联 Sharpless 环氧化/环化,提供天然产物的 C10-C26 多环区域。