Total Synthesis of TAK-Kinase Inhibitor LL-Z1640-2 via Consecutive Macrocyclization and Transannular Aromatization
作者:Hideki Miyatake-Ondozabal、Anthony G. M. Barrett
DOI:10.1021/ol102468k
日期:2010.12.3
The biomimetic totalsynthesis of LL-Z1640-2 (3) is reported without the use of phenol protection. The aromatic unit was constructed via the transannular aromatization of macrocyclic triketo-ester 2, which in turn was synthesized by macrolactonization using an intramolecular trapping of a triketo-ketene derived from dioxinone 1.