H. Riechers et al., DISCOVERY AND OPTIMIZATION OF A NOVEL CLASS OF ORALLY-ACTIVE NONPEPTIDIC ENDOTHELIN-A RECEPTOR ANTAGONISTS, Journal of medicinal chemistry, 39(11), 1996, pp. 2123-2128
A novel class of endothelin-A receptor ligands was discovered by high-
throughput screening. Lead structure optimization led to highly potent
antagonists which can be synthesized in a short sequence. The compoun
ds are endothelin-A-selective, are orally available, and show a long d
uration of action.