Studies towards the total synthesis of palau'amine. Formation of 4,5-dihydropyrrole-2-carboxylate intermediates by alkene–enamide ring-closing metathesis
作者:Jason D. Katz、Larry E. Overman
DOI:10.1016/j.tet.2004.06.140
日期:2004.10
A highly functionalized 4,5-dihydropyrrole-2-carboxylate is assembled by alkene-enamide ring-closing metathesis. Subsequent intramolecular azomethine imine dipolar cycloaddition provides a triazacyclopenta[cd]pentalene intermediate of potential use in a total synthesis of palau'amine. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis of 1,9-Dideoxy-pre-axinellamine
作者:Junichiro Yamaguchi、Ian B. Seiple、Ian S. Young、Daniel P. O'Malley、Michael Maue、Phil S. Baran
DOI:10.1002/anie.200705913
日期:2008.4.28
Exploring Symmetry-Based Logic for a Synthesis of Palau’amine
作者:Qingyi Li、Paul Hurley、Hui Ding、Andrew G. Roberts、Radha Akella、Patrick G. Harran
DOI:10.1021/jo900755r
日期:2009.8.21
to palau’amine is described that exploits veiled symmetry in the structure. Bis-alkylidenes i have been prepared and found susceptible to halogenative desymmetrization using t-BuOCl. This oxidation forms the imbedded spirocyclopentane motif observed in the natural product. A host of atypical reactions and processes developed during these studies are discussed, as are plans for completing total syntheses