8-Substituted-9-deazaxanthines as adenosine receptor ligands: design, synthesis and structure-affinity relationships at A2B
作者:Angelo Carotti、Angela Stefanachi、Enrique Raviña、Eddy Sotelo、Maria Isabel Loza、Maria Isabel Cadavid、Nuria B. Centeno、Orazio Nicolotti
DOI:10.1016/j.ejmech.2004.07.008
日期:2004.10
A number of 8-substituted-9-deazaxanthine derivatives (1,3-dialkyl-6-substituted-1H-pyrrolo[3,2-d]pyrimidine-2,4(3H,5H)-diones) were prepared and tested for their antagonistic activity at the recombinant human adenosine receptors, in particular at the A(2B) and A(2A) receptor subtypes. Compounds endowed with micromolar to nanomolar binding affinities, but with poor A(2B)/A(2A) selectivity, were obtained. Preliminary quantitative structure-affinity relationships suggested that the binding potency at the A(2B) receptor is mainly modulated by the electronic and lipophilic properties of the ligands. (C) 2004 Elsevier SAS. All rights reserved.