Study of Cascade Ring-Closing Metathesis Reactions en Route to an Advanced Intermediate of Taxol
作者:Aurélien Letort、De-Liang Long、Joëlle Prunet
DOI:10.1021/acs.joc.6b02264
日期:2016.12.16
A highlyfunctionalized intermediate in the synthesis of Taxol has been synthesized, which features the tricyclic core and the required oxygen substituents at C1, C2, C7, C10, and C13. The key step, a ring-closing dienyne metathesis (RCDEYM) reaction, has been thoroughly optimized to favor the tricyclic product over the undesired bicyclic product resulting from diene metathesis.