BMS-193884 is a selective, orally active, and competitive ETA antagonist with 10000-fold greater affinity for the human ETA receptor (Ki=1.4 nM) than for the ETB receptor[1].
IC 50
ETA: 1.4 nM (Ki); ETB: 18700 nM (Ki)
References
[1] Murugesan N, et al. Biphenylsulfonamide endothelin receptor antagonists. 4. Discovery of N-[[2'-[[(4,5-dimethyl-3-isoxazolyl)amino]sulfonyl]-4-(2-oxazolyl)[1,1'-biphenyl]- 2-yl]methyl]-N,3,3-trimethylbutanamide (BMS-207940), a highly potent and orally active ET(A) selective antagonist. J Med Chem. 2003;46(1):125-137. DOI:10.1021/jm020289q
