Crystal structure, absolute configuration, and phosphodiesterase inhibitory activity of (+)-1-(4-bromobenzyl)-4-[(3-cyclopentyloxy)-4-methoxyphenyl]-2-pyrrolidinone

Autor: Paul W. Baures, L. B. Cieslinski, Karl F. Erhard, Siegfried B. Christensen, Drake S. Eggleston, Theodore J. Torphy
Rok vydání: 1993
Předmět:
Zdroj: Journal of Medicinal Chemistry. 36:3274-3277
ISSN: 1520-4804
0022-2623
DOI: 10.1021/jm00074a007
Popis: Chiral HPLC resolution of the phosphodiesterase IV (PDE IV) inhibitor rolipram (1) provided (-)-1, and this enantiomer was converted into its 1-(4-bromobenzyl) derivative, (+)-2. X-ray structural analysis of (+)-2 established the absolute configuration as R, which provides the first direct evidence for a previously assumed assignment of configuration. The crystal structure of (+)-2 and the PDE inhibitory activity of both enantiomers of 2 are discussed in the context of a previously proposed topological model.
Databáze: OpenAIRE