Concise Total Synthesis of (+)‐WIN 64821 and (−)‐Ditryptophenaline

On a fast track: The secondary metabolites (+)-WIN 64821 and (−)-ditryptophenaline have been synthesized in six and seven steps, respectively, from amino acid derivatives in a concise and enantioselective manner. The gram-scale synthesis of key intermediates and the simultaneous introduction of vicinal quaternary stereocenters are described. The synthesis and structural confirmation of (−)-1′-(2-phenylethylene)ditryptophenaline is also reported. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z704960_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.