The synthesis of a fully elaborated C1–C10 fragment of madeirolide A has been achieved via a strategy based on a series of stereospecific processes. The concise synthetic route also features an iridium-catalyzed visible light induced radical cyclization for construction of the THP ring and a palladium-catalyzed glycosylation for formation of the α-cineruloside linkage.
Synthesis of the C1–C11 Western Fragment of Madeirolide A
作者:Ian Paterson、Gregory W. Haslett
DOI:10.1021/ol400280b
日期:2013.3.15
The stereocontrolled synthesis of a fully elaborated C1–11 subunit of madeirolide A is described, utilizing an asymmetric boron aldol reaction and a cis-selective hetero-Michael cyclization to form the tetrahydropyran ring, followed by efficient formation of the required C5 α-glycoside.