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EnglishA series of ethyl 4-amino-1-(2-chloro-2-phenylethyl)-6-oxo-6,7-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylates () has been synthesized as potential A(1) adenosine receptor (A(1) AR) ligands. Binding affinities of the new compounds were determined for adenosine A(1), A(2A) and A(3) receptors. Compounds and showed good affinity (K(i)= 299 nM and 517 nM, respectively) and selectivity towards A(1) AR, whereas showed good affinity for A(2A) AR (K(i)= 290 nM), higher than towards A(1) AR (K(i)= 1000 nM). The only arylamino derivative of the series displayed high affinity (K(i)= 4.6 nM) and selectivity for A(3) AR. Molecular modelling and 3D-QSAR (CoMFA) studies carried out on the most active compounds gave further support to the pharmacological results.
| Autori interni: | ||
| Autori: | FOSSA P; PESTARINO M; MENOZZI G; MOSTI L; SCHENONE S; RANISE A; BONDAVALLI F; TRINCAVELLI ML; LUCACCHINI A; MARTINI C | |
| Titolo: | New pyrazolo[3,4-b]pyridones as selective A(1) adenosine receptor antagonists: synthesis, biological evaluation and molecular modelling studies | |
| Anno del prodotto: | 2005 | |
| Digital Object Identifier (DOI): | 10.1039/b502831k | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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