Total Synthesis of (+)-Discodermolide: A Highly Convergent Fourth-Generation Approach
作者:Amos B. Smith、B. Scott Freeze、Ming Xian、Tomoyasu Hirose
DOI:10.1021/ol050455z
日期:2005.4.1
[structure: see text] A highly convergent, fourth-generation total synthesis of (+)-discodermolide (1), with a longest linear sequence of 17 steps and an overall yield of 9.0%, has been achieved. Highlighting the strategy is the efficient construction and sequential, bidirectional union of a linchpin comprising the C(9)-C(14) Wittig salt-vinyl iodide (-)-18. Importantly, Wittig salt generation proceeded
[结构:见正文]已经实现了高度收敛的第四代(+)-discodermolide(1)的全合成,具有最长的17个步骤的线性序列,总产率为9.0%。强调该策略的是包含C(9)-C(14)Wittig盐-乙烯基碘(-)-18的链节的有效构建和顺序,双向联合。重要的是,维蒂希盐的产生在环境压力下以优异的产率进行。