| abstract |
Compounds of formula (I) or a pharmaceutically acceptable derivative thereof: wherein A, B, Z, R1, R2a, R2b, Rx, R8, and R9 are as defined in the specification, a process for the preparation of such compounds, pharmaceutical compositions comprising such compounds and the use of such compounds in medicine, in particular their use in the treatment of conditions mediated by the action of PGE2 at the EP1 receptor. The EP1 receptor is associated with smooth muscle contraction, pain (in particular inflammatory, neuropathic and visceral), inflammation, allergic activities, renal regulation and gastric or enteric mucus secretion. |