desmethyl bosentan

Desmethyl bosentan is an active metabolite of the endothelin receptor antagonist bosentan .1Desmethyl bosentan (25 μM) activates the pregnane X receptor (PXR) in CV-1 monkey kidney cells expressing the human receptor in a reporter assay. 1.van Giersbergen, P.L.M., Gnerre, C., Treiber, A., et al.Bosentan, a dual endothelin receptor antagonist, activates the pregnane X nuclear receptorBr. J. Clin. Pharmacol.54(5)561-562(2002)

Hydroxy desmethyl Bosentan (Ro 64-105) is a Bosentan metabolism produced by the cytochrome P450 enzymes CYP2C9 and CYP3A4 in the liver.