名称:
8-(Sulfostyryl)xanthines: water-soluble A2A-selective adenosine receptor antagonists11Preliminary results were presented at the International Symposium “Purines ’96” in Milan, Italy; abstract published in Drug Dev. Res. 1996, 37, 112.
摘要:
8-(Sulfostyryl)xanthine derivatives were synthesized as water-soluble A(2A)-selective adenosine receptor (AR) antagonists, meta- and para-sulfostyryl-DMPX (3,7-dimethyl-1-propargylxanthine) derivatives 11a and 11b exhibited high affinity to rat AZA-AR in submicromolar concentrations, and were 20- to 30-fold selective versus rat A(1)-AR. Styryl-DMPX derivatives were inactive at human A(2B)- and A(3)-AR. 1,3-Dipropyl-8-p-sulfostyrylxanthine (13) and its 7-methyl derivative (14) showed similar (13) or higher (14) A(2A) affinity than 11a and 11b but showed no (13) or only a low degree (14) of selectivity versus A(1)-, A(2B)-, and A(3)-AR. The A(2A)-selective sulfostyryl-DMPX derivatives exhibit high water-solubility and may be useful research tools for in vivo studies. (C) 1998 Elsevier Science Ltd. All rights reserved.