Synthesis and Biological Evaluation of Metabolites of 2-n-Butyl-9-methyl-8-[1,2,3]triazol-2-yl-9H-purin-6-ylamine (ST1535), A Potent Antagonist of the A2A Adenosine Receptor for the Treatment of Parkinson’s Disease
摘要:
The synthesis and preliminary in vitro evaluation of five metabolites of the A(2A) antagonist ST1535 (1) are reported. The metabolites, originating in vivo from enzymatic oxidation of 2-butyl group of parent compound, were synthesized from 6-chloro-2-iodo-9-methyl-9H-purine (2) by selective C-C bond formation via halogen/magnesium exchange and/or palladium-catalyzed reactions. The metabolites behaved in vitro as antagonist, ligands of cloned human A(2A), receptor with affinities (K-i 7.5-53 nM) comparable to that of compound 1 (K-i 10.7 nM), thus showing that the long duration of action of 1 could be in part due to its metabolites. General behavior after oral administration in mice was also analyzed.
[EN] OXIDATED DERIVATIVES OF TRIAZOLYPURINES USEFUL AS LIGANDS OF THE ADENOSINE A2A RECEPTOR AND THEIR USE AS MEDICAMENTS [FR] DÉRIVÉS OXYDÉS DE TRIAZOLYPURINES UTILES EN TANT QUE LIGANDS DU RÉCEPTEUR ADÉNOSINIQUE A2A ET LEUR UTILISATION EN TANT QUE MÉDICAMENTS
OXIDATED DERIVATIVES OF TRIAZOLYLPURINES USEFUL AS LIGANDS OF THE ADENOSINE A2A RECEPTOR AND THEIR USE AS MEDICAMENTS
申请人:Cabri Walter
公开号:US20120053191A1
公开(公告)日:2012-03-01
The present invention relates to new triazolyl purine derivatives of formula (I), processes for their preparation, and to pharmaceutical compositions containing them for the treatment of neurological disorders or cerebral ischaemia for which inhibition of adenosine A2A receptor will result at improving the health state of a patient.
Oxidated derivatives of triazolylpurines useful as ligands of the adenosine A2A receptor and their use as medicaments
申请人:Cabri Walter
公开号:US09133197B2
公开(公告)日:2015-09-15
The present invention relates to new triazolyl purine derivatives of formula (I), processes for their preparation, and to pharmaceutical compositions containing them for the treatment of neurological disorders or cerebral ischaemia for which inhibition of adenosine A2A receptor will result at improving the health state of a patient.