Synthesis of allocolchicines using sequential ring-closing enyne metathesis-Diels-Alder reactions.

Org Lett

Unité de Chimie Biologique, INRA, F-78026 Versailles, France.

Published: February 2007

New allocolchinoids having functionality in the C ring at position C10 or C11 have been synthesized using the enyne ring-closing metathesis (RCM) reaction for construction of the seven-membered ring and a Diels-Alder-aromatization sequence for the elaboration of the aromatic ring C. [reaction: see text].

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http://dx.doi.org/10.1021/ol0630548DOI Listing

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