Synthesis 2010(4): 631-642  
DOI: 10.1055/s-0029-1218608
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Synthetic Studies on the Sporolides: Exploration of the Enediyne Route

Simone Bonazzi, Massimo Binaghi, Cindy Fellay, Jean-Yves Wach, Karl Gademann*
Chemical Synthesis Laboratory (SB-ISIC-LSYNC), Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, Switzerland
Fax: +41(21)6939700; e-Mail: karl.gademann@epfl.ch;
Further Information

Publication History

Received 10 September 2009
Publication Date:
16 December 2009 (online)

Abstract

Synthetic studies towards the construction of the cyclopenta[a]indene fragment of the heptacyclic marine metabolite sporolide are reported based on a hypothetical biosynthesis. The key step of this biogenetic proposal includes a Bergman cyclization of an enediyne precursor. The enediyne target of this synthetic study was prepared by Sonogashira cross-coupling of two fragments, of which the cyclopentane fragment was prepared from cyclopentenone, Morita-Baylis-Hillman reaction, and enantioselective Sharpless dihydroxylation.