Highly potent and selective ETA endothelin receptor antagonist (IC50 values are 0.11 nM and 98 nM for human ETA and ETB receptors, respectively). Attenuates hypoxia-induced pulmonary hypertension in rats. Orally bioavailable.
Winn et al (1996) 2,4-Diarylpyrrolidine-3-carboxylic acids--potent ETA selective endothelin receptor antagonists. 1. Discovery of A-127722. J.Med.Chem. 39 1039 PMID:8676339 |Opgenoth et al (1996) Pharmacological characterization of A-127722: an orally active and highly potent ETA-selective receptor antagonist. J.Pharmacol.Exp.Ther. 276 473 PMID:8632312 |Chen et al (1997) The orally active nonpeptide endothelin A-receptor antagonist A-127722 prevents and reverses hypoxia-induced pulmonary hypertension and pulmonary vascular remodeling in Sprague-Dawley rats. J.Cardiovasc.Pharmacol 29 713 PMID:9234651