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Updated: Jun 23, 2026

Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
Synthesis of proline-based diketopiperazine scaffolds
N Deppermann1, A H G P Prenzel, A Beitat
1Department of Chemistry, University of Giessen, Heinrich-Buff-Ring 58, 35390 Giessen, Germany.
Abstract:
A number of natural products with interesting biological properties are based on a diketopiperazine scaffold. In this context, we have developed a diversity oriented and efficient synthetic strategy to highly functionalized proline-based diketopiperazines. In this paper we describe the stereoselective synthesis of various scaffolds resembling abundant natural product core structures. These scaffolds can be conjugated to a solid phase and are thus platforms for the construction of small compound libraries and the synthesis of natural products with diketopiperazine cores.
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