Synthesis of 3-Deaza-beta-hydroxyhistidine Derivatives and Their Use for the Preparation of Substituted Pyrrolo[2,3-c]pyridine-5-carboxylates via the Pictet-Spengler Reaction
1 Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.