MRS-1191 is an effective and selective A3 adenosine receptor antagonist (KB: 92 nM, a Ki: 31.4 nM for human A3 receptor and an IC50: 120 nM for CHO cells).
MRS 1523 can exert an antihyperalgesic effect through N-type Ca channel block and action potential inhibition in isolated rat dorsal root ganglion (DRG) neurons. MRS 1523 is an effective and selective adenosine A3 receptor antagonist Ki: 18.9 nM and 113 n
MRS2698 is an effective and highly selective agonist of the P2Y2 receptor (EC50: 8 nM). MRS2698 also is >300-fold P2Y2-selective versus the P2Y4 and P2Y6 receptors.