Synlett 1999; 1999(6): 786-788
DOI: 10.1055/s-1999-2708
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cis- and trans-3-(3-Indolyl)proline Derivatives as Conformationally Restricted Analogues of Tryptophan

D. Damour* , J.-P. Pulicani, M. Vuilhorgne, S. Mignani
  • *Rhône-Poulenc Rorer SA, Centre de Recherche de Vitry-Alfortville, 13 Quai Jules Guesde-BP 14, 94403, Vitry-sur-Seine Cedex, France; Fax 33 (1) 55 71 80 63; E-mail: dominique.damour@rp-rorer.fr
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Publikationsdatum:
31. Dezember 1999 (online)

A method for the diastereoselective generation of 3-indolyl-3-proline derivatives has been developed. The [3+2] cycloaddition reaction of 3-vinylindoles with dimethyl N-ethoxycarbonyl-N-methoxymethylaminomalonate in the presence of TiCl4, afforded the title compounds after acid hydrolysis and decarboxylation reactions. These new amino acids may be viewed as conformationally restricted mimetics of tryptophan.