A Concise Approach to Vinigrol†
Thomas J. Maimone
Department of Chemistry, The Scripps Research Institute, 10650 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-7375
Search for more papers by this authorAna-Florina Voica
Department of Chemistry, The Scripps Research Institute, 10650 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-7375
Search for more papers by this authorPhil S. Baran Prof.
Department of Chemistry, The Scripps Research Institute, 10650 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-7375
Search for more papers by this authorThomas J. Maimone
Department of Chemistry, The Scripps Research Institute, 10650 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-7375
Search for more papers by this authorAna-Florina Voica
Department of Chemistry, The Scripps Research Institute, 10650 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-7375
Search for more papers by this authorPhil S. Baran Prof.
Department of Chemistry, The Scripps Research Institute, 10650 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-7375
Search for more papers by this authorWe thank Dr. D.-H. Huang and Dr. L. Pasternack for NMR spectroscopic assistance, Dr. G. Siuzdak for mass spectrometric and Dr. Arnold Rheingold (UCSD) for X-ray crystallographic assistance. Financial support for this work was provided by Bristol-Myers Squibb (predoctoral fellowship to T. J. M.), Merck, and Roche.
Graphical Abstract
Short and sweet: A simple and practical route to the unusual tricyclic ring system found in the biologically active diterpene vinigrol is described. A remarkable proximity-induced intramolecular cycloaddition and mild Grob fragmentation allow rapid construction of the core ring system in less than 10 steps and with a minimal reliance on protecting groups.
Supporting Information
Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z800167_s.pdf or from the author.
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