Synthesis 2006(18): 3048-3057  
DOI: 10.1055/s-2006-950191
PAPER
© Georg Thieme Verlag Stuttgart · New York

Biomimetic Syntheses of Lamellarin and Lukianol-Type Alkaloids

Christian Peschko, Christian Winklhofer, Andreas Terpin, Wolfgang Steglich*
Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13 (F), 81377 München, Germany
Fax: +49(89)218077756; e-Mail: wolfgang.steglich@cup.uni-muenchen.de;
Further Information

Publication History

Received 22 May 2006
Publication Date:
15 August 2006 (online)

Abstract

The formation of 3,4-diarylpyrrole-2,5-dicarboxylic acids from arylpyruvic acids and 2-arylethylamines was used as a key step for the synthesis of several marine pyrrole alkaloids. The utility of this method is illustrated through the development of syntheses of ningalin B (5), lamellarins G (11a) and K (11b), lukianol A (32), and a lukianol-lamellarin hybrid (24).

23

Compound 17 was prepared from ethyl 3-(4-methoxy-phenyl)pyruvate according to ref. 2b in quantitative yield.