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Synthetic efforts toward a total synthesis of (+)-pelorusdie A

Posted on:2010-03-08Degree:Ph.DType:Thesis
University:University of MinnesotaCandidate:Kopel, Lucas CFull Text:PDF
GTID:2441390002483338Subject:Chemistry
Abstract/Summary:
This thesis has been divided into six chapters that describe synthetic efforts toward the cytotoxic marine macrolide (+)-peloruside A, isolated by Northcote and coworkers from the New Zealand marine sponge Mycale hentscheli. Chapter 1 discusses the background of peloruside A and published literature studies relating to its biological activity.;Chapter 2 conveys a detailed report of the synthetic efforts by others that have resulted in three total syntheses and multiple efforts toward the total synthesis of peloruside A.;Chapter 3 describes the previous synthetic efforts by Hoye group members toward peloruside A. Two different strategies for synthesizing the C13-C20 fragment of (+)- peloruside A have been established using ring-closing metathesis. Synthesis of the C1-C9 fragment of (+)-peloruside A was accomplished using a kinetic lactonization strategy.;Chapter 4 reports on my efforts at scaling-up and optimizing the synthesis of the C1-C9 fragment of (+)-peloruside A and modifications to the previous route.;Chapter 5 describes the new progress toward synthesizing (+)-peloruside A that was achieved. These efforts culminated in the synthesis of a C1-C11 fragment of (+)-peloruside A along with studies investigating the coupling of late stage segments via a 1,5-anti boron-mediated aldol. Chapter 6 highlights the key features of my synthetic efforts toward (+)-peloruside A.
Keywords/Search Tags:Synthetic efforts, -peloruside, Chapter, Synthesis, Total
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