Study of the structural requirements for Dopa potentiation and oxotremorine antagonism by L-prolyl-L-leucylglycinamide
摘要:
A number of analogs of the tripeptide L-prolyly-L-leucylglycinamide (1) were synthesized and evaluated in the Dopa potentiation and oxotremorine antagonism tests. The replacement of the glycinamide residue with either the glycine methylamide, glycine, aminoacetonitrile, amino-2-propanone, semicarbazide, or beta-alaninamide residues resulted in a loss of activity in both tests. A 1:1 mixture of L-prolyl-L-leucyl-(-)-thiazolidine-2-carboxamide (8) and L-prolyl-L-leucyl-(+)-thiazolidine-2-carboxamide (9) showed marked activity in the Dopa potentiation test but was unable to antagonize the tremors induced by oxotremorine. L-Prolyl-L-leucyl-L-prolinamide (11), on the other hand, was active in the oxotremorine antagonism test but inactive in the Dopa potentiation test. The replacement of the pyrrolidine ring of 1 with either a thiazolidine or cyclopentane ring system caused a loss of activity. The cyclopentanecarboxylic acid analogue 13, however, was found to have moderate activity in the serotonin potentiation test.
THIAZOLIDINE DERIVATIVES AND METHODS FOR THE PREPARATION THEREOF
申请人:Kim Sung Soo
公开号:US20100048570A1
公开(公告)日:2010-02-25
The present invention relates to novel 2-carbonyl-3-acyl-1,3-thiazolidines having a β-amino group on the acyl chain, in free, prodrug form or pharmaceutically acceptable salt thereof, including their enantiomers, diastereomers and racemates, as efficient inhibitors against DPP-IV. The invention further relates to the pharmaceutical compositions comprising the disclosed compounds. The present invention also relates to methods for preparing the disclosed compounds and for treating DPP-IV-mediated diseases.
Synthesis and 11β hydroxysteroid dehydrogenase 1 inhibition of thiazolidine derivatives with an adamantyl group
作者:Sung Wook Kwon、Seung Kyu Kang、Jae Hong Lee、Joo Hwan Bok、Chi Hyun Kim、Sang Dal Rhee、Won Hoon Jung、Hee Youn Kim、Myung Ae Bae、Jin Sook Song、Duck Chan Ha、Hyae Gyoung Cheon、Ki Young Kim、Jin Hee Ahn
DOI:10.1016/j.bmcl.2010.10.123
日期:2011.1
A new series of thiazolidinederivatives with an adamantyl group was synthesized and evaluated for their ability to inhibit 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1). Our initial compound showed a weak inhibitory activity. Significant improvements in potency were achieved by substituent modification. The potent compound showed good in vitro inhibitory activity toward human 11β-HSD1, selectivity
[EN] THIAZOLIDINE DERIVATIVES AND METHODS FOR THE PREPARATION THEREOF<br/>[FR] DÉRIVÉS DE THIAZOLIDINE ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:KAINOS MEDICINE INC
公开号:WO2008087560A2
公开(公告)日:2008-07-24
(FR) La présente invention concerne de nouvelles 2-carbonyl-3-acyl-1,3-thiazolidines comprenant un groupe β-amino sur la chaîne acyle, sous forme libre ou sous la forme d'un promédicament ou d'un sel pharmaceutiquement acceptable correspondant, y compris leurs énantiomères, diastéréomères et racémates, ces composés étant utilisés comme inhibiteurs efficaces de la DPP-IV. L'invention concerne également des compositions pharmaceutiques renfermant lesdits composés. Elle se rapporte en outre à des procédés de préparation de ces composés ainsi qu'à des méthodes de traitement de maladies médiées par la DPP-IV.