TABLE 1

Effect of compound A and B on various stimulus


Ligand (Cell, Readout)

Compound A IC50

Compound B IC50
nM
Iloprost (UMR-108, cAMP) 480 390
LTB4 (BLT1-CHO, Ca2+) >10,000 4500
PGE2 (rat EP1-CHO, Ca2+) >10,000 >10,000
Sulprostone (HEL, Ca2+) >10,000 >10,000
PGD2 (CRTH2-L1.2, Ca2+) >10,000 >10,000
U46619 (K562, Ca2+)
>10,000
>10,000