Total Synthesis of Callyspongiolide, Part 2: The Ynoate Metathesis/
<i>cis</i>
‐Reduction Strategy
作者:Bernhard Wölfl、Guillaume Mata、Alois Fürstner
DOI:10.1002/chem.201804988
日期:2019.1.2
The macrocyclic core of the cytotoxic marine natural product callyspongiolide (1) was forged by ring‐closing alkyne metathesis (RCAM) of an ynoate precursorusing a molybdenum alkylidyne complex endowed with triarylsilanolate ligands as the catalyst. This result is remarkable in view of the failed attempts documented in the literature at converting electron deficient alkynes with the aid of more classical