摘要:
The discovery and evaluation of 5-(4-phenylbenzyl)oxazole-4-carboxamides as prostacyclin (IP) receptor antagonists is described. Analogs disclosed showed high affinity for the IP receptor in human platelet membranes with IC50 values of 0.05-0.50 mu M, demonstrated functional antagonism by inhibiting cAMP production in HEL cells with IC50 values of 0.016-0.070 mu M, and exhibited significant selectivity versus other prostanoid receptors. (c) 2006 Elsevier Ltd. All rights reserved.