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Medicinal-Pharmaceutical Chemistry Commons

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Organic Chemistry

1999

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New Methods For The Synthesis Of Natural Products , Alexey G. Melekhov Jan 1999

New Methods For The Synthesis Of Natural Products , Alexey G. Melekhov

Retrospective Theses and Dissertations

In this work we developed new approaches to three different classes of compounds. In the first chapter we employed PIFA as an oxidant to develop a direct route to pyrrolobenzodiazepines. We also developed a new way to generate acyl radicals by oxidative decarboxylation. The utility of this methodology was shown in the synthesis of 8-deoxy DC-81. In the second chapter we developed a five-step synthetic route to 1,4-phenanthrenequinones. We also used one of these phenanthrenequinones for the construction of an angularly-fused aromatic systems. In the third chapter we studied Lewis acid-mediated cyclizations of acyl quinones. We synthesized a precursor ...