Asymmetric Synthesis of Calyculin C. 1. Synthesis of the C<sub>1</sub>−C<sub>25</sub> Fragment
作者:Gerard R. Scarlato、John A. DeMattei、Lee S. Chong、Anthony K. Ogawa、Mavis R. Lin、Robert W. Armstrong
DOI:10.1021/jo960314y
日期:1996.1.1
We report our synthesis of the C(1)-C(25) fragment of serine/threonine phosphatase PP1 and PP2A inhibitor, calyculin C. Synthetic efforts were directed initially toward the synthesis of a spiroketal core fragment (7), which culminated in completion of the bottom half of the natural product. The synthesis of fragment 7 and subsequent elaboration relied on an allylboration strategy for introduction of
我们报告了我们的丝氨酸/苏氨酸磷酸酶PP1和PP2A抑制剂Clyculin C的C(1)-C(25)片段的合成。合成工作最初是针对螺环酮核心片段(7)的合成,最终完成天然产物的下半部分。片段7的合成和随后的修饰依赖于手性引入的烯丙基硼化策略。代表潜在不稳定四烯部分的C(1)-C(8)片段作为单独的实体引入。