The invention relates to novel aryl-ethene-sulfonamides and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more of those compounds and especially their use as endothelin receptor antagonists.
The invention relates to novel aryl-ethene sulfonamides of the general formula (I); wherein the symbols R1-R6, X, Y, Z and Q have the significance given in the description; and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more of those compounds and especially their use as endothelin receptor antagonists.
The Discovery of <i>N</i>-[5-(4-Bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-<i>N</i>′-propylsulfamide (Macitentan), an Orally Active, Potent Dual Endothelin Receptor Antagonist
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 novelseries of alkyl sulfamide substituted pyrimidines. Among these, compound 17 (macitentan, ACT-064992) emerged as particularly interesting as it is a potent inhibitor of ETA with significant affinity for the ETB receptor and shows excellent