The discovery of N-[5-(4-bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-N'-p ropylsulfamide (Macitentan), an orally active, potent dual endothelin receptor antagonist.

Article Details

Citation

Bolli MH, Boss C, Binkert C, Buchmann S, Bur D, Hess P, Iglarz M, Meyer S, Rein J, Rey M, Treiber A, Clozel M, Fischli W, Weller T

The discovery of N-[5-(4-bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-N'-p ropylsulfamide (Macitentan), an orally active, potent dual endothelin receptor antagonist.

J Med Chem. 2012 Sep 13;55(17):7849-61. doi: 10.1021/jm3009103. Epub 2012 Aug 16.

PubMed ID
22862294 [ View in PubMed
]
Abstract

Starting from the structure of bosentan (1), we embarked on a medicinal chemistry program aiming at the identification of novel potent dual endothelin receptor antagonists with high oral efficacy. This led to the discovery of a novel series of alkyl sulfamide substituted pyrimidines. Among these, compound 17 (macitentan, ACT-064992) emerged as particularly interesting as it is a potent inhibitor of ET(A) with significant affinity for the ET(B) receptor and shows excellent pharmacokinetic properties and high in vivo efficacy in hypertensive Dahl salt-sensitive rats. Compound 17 successfully completed a long-term phase III clinical trial for pulmonary arterial hypertension.

DrugBank Data that Cites this Article

Drug Targets
DrugTargetKindOrganismPharmacological ActionActions
MacitentanEndothelin B receptorProteinHumans
Unknown
Antagonist
Details
MacitentanEndothelin-1 receptorProteinHumans
Yes
Antagonist
Details
Binding Properties
DrugTargetPropertyMeasurementpHTemperature (°C)
BosentanEndothelin B receptorIC 50 (nM)202N/AN/ADetails
BosentanEndothelin-1 receptorIC 50 (nM)45N/AN/ADetails
MacitentanEndothelin B receptorIC 50 (nM)391N/AN/ADetails
MacitentanEndothelin-1 receptorIC 50 (nM)0.5N/AN/ADetails