Rolofylline (KW-3902) is a potent, selective adenosine A1 receptor antagonist that is under development for the treatment of patients with acute congestive heart failure and renal impairment.
Derenofylline (SLV 320) is a potent, selective and orally active adenosine A1 receptor antagonist, with Ki values of 1 nM, 200 nM and 398 nM for human A1, A3 and A2A receptors respectively.