1. Ecole des Hautes Etudes d'Ingénieur, EA 2692,13 rue de Toul, 59046 Lille, France;2. Institut de Chimie Pharmaceutique Albert Lespagnol, EA2692, Université de Lille 2, rue du Professeur Laguesse, BP 83 F‐59006 Lille, France
Abstract:
A new ring‐switching reaction of enaminoesters behaving as bisnucleophiles towards other enaminoesters behaving as biselectrophiles is described. By starting from pyroglutamic derivatives, this reaction provided easy access to methyl 5‐oxo‐1,2,3,5‐tetrahydro‐3‐indolizinecarboxylates substituted by an aminoester side chain in position 6.
