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Synthesis of 1-(m-Hydroxybenzyl)-Substituted 1,2,3,4-Tetrahydroisoquinoline-3-carboxylic Acid Derivatives as Opioid Peptide Mimetics − Unexpected Amide Bond Cleavages under Mild Conditions

✍ Scribed by Els Mannekens; Marco Crisma; Sylvia Van Cauwenberghe; Dirk Tourwé


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
175 KB
Volume
2003
Category
Article
ISSN
1434-193X

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✦ Synopsis


Abstract

N‐Glycyl‐(1__R__,3__S__)‐1‐(m‐hydroxybenzyl)‐1,2,3,4‐tetrahydroisoquinoline‐3‐carboxylic acid (Tic) was prepared as a Tyr‐Tic dipeptide mimetic for exploration of its potential as a delta opioid receptor selective ligand. The compound was successfully obtained by a stereoselective synthesis starting from L‐Tic. In the course of the reactions, unusual peptide bond cleavages were observed under mild conditions, and reaction mechanisms have been proposed. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)