Synthesis 2005(7): 1183-1199  
DOI: 10.1055/s-2005-865302
FEATUREARTICLE
© Georg Thieme Verlag Stuttgart · New York

Synthesis of the C1-C17 Macrolactone of Tedanolide

Jorma Hassfeld, Ulrike Eggert, Markus Kalesse*
Universität Hannover, Institut für Organische Chemie, Schneiderberg 1B, 30167 Hannover, Germany
Fax: +49(511)7623011; e-Mail: Markus.Kalesse@oci.uni-hannover.de;
Further Information

Publication History

Received 30 November 2004
Publication Date:
23 March 2005 (online)

Abstract

The vinylogous Mukaiyama aldol reaction is a useful method to build up complex polyketide structures. It is successfully employed in the synthesis of the C1-C17 macrolactone of tedanolide, a highly cytotoxic marine natural product. These studies present a practical approach toward the total synthesis of tedanolide; it is pursued using the appropriate C13-C23 segment that is introduced by a pivotal aldol reaction to join both hemispheres.

22

Hassfeld, J.; Kalesse, M. unpublished results.

45

The C13 stereochemical assignment is based on analysis of the C12 1H NMR signals according to Ref. 39.