New dipeptides containing thiazolidine-4-carboxylic acid derivatives: Synthesis and characterization using NMR techniques and X-ray data

DOI: 10.1248/cpb.47.950

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 950 - 955 (1999)

Update date:2022-08-02

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Authors:

Pellegrini, Nadia

Refouvelet, Bernard

Crini, Gregorio

Blacque, Olivier

Kubicki, Marek M.

Robert, Jean-Francois

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Article abstract of DOI:10.1248/cpb.47.950

New dipeptides, structural analogues of known immunomodulating agents, were prepared by stereospecific condensation between 2-substituted thiazolidine-4-carboxylate esters with N-substituted L-proline or L- thiaproline. The structure of these compounds has been elucidated by combination of NMR methods and X-ray analysis. In addition, NMR measurements on dipeptides indicated the presence of S-cis and S-trans conformers around the amide bonds.

Full text of DOI:10.1248/cpb.47.950

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