Sulfonamides and derivatives thereof that modulate the activity of endothelin
申请人:TEXAS BIOTECHNOLOGY CORPORATION
公开号:EP0870764A1
公开(公告)日:1998-10-14
A compound of the following formula:
or a pharmaceutically acceptable salt thereof, where Ar2 is particularly phenyl, biphenyl or naphthyl and R1 and R2 are as defined herein, useful in the modulation of the activity of endothelin.
The Discovery of Sulfonamide Endothelin Antagonists and the Development of the Orally Active ETA Antagonist 5-(Dimethylamino)-N-(3,4-dimethyl-5- isoxazolyl)-1-naphthalenesulfonamide
作者:Philip D. Stein、John T. Hunt、David M. Floyd、Suzanne Moreland、Kenneth E. J. Dickinson、Caroline Mitchell、Eddie C.-K. Liu、Maria L. Webb、Natesan Murugesan
DOI:10.1021/jm00029a001
日期:1994.2
US5571821A
申请人:——
公开号:US5571821A
公开(公告)日:1996-11-05
Sulfonamides and derivatives thereof that modulate the activity of
申请人:Texas Biotechnology Corporation
公开号:US05571821A1
公开(公告)日:1996-11-05
Sulfonamides and methods using these sulfonamides for inhibiting the binding of an endothelin peptide to an endothelin receptor by contacting the receptor with the sulfonamide are provided. Methods for treating endothelin-mediated disorders by administering effective amounts of one or more of these sulfonamides or prodrugs thereof that inhibit or increase the activity of endothelin are also provided. The sulfonamides have formula I: ##STR1## in which Ar.sup.1 is a 3- or 5-isoxazolyl and Ar.sup.2 is selected from among alkyl, including straight and branched chains, aromatic rings, fused aromatic rings and heterocyclic rings, including 5-membered heterocycles with one, two or more heteroatoms and fused ring analogs thereof and 6-membered rings with one, two or more heteroatoms and fused ring analogs thereof. Ar.sup.2 is preferably thiophenyl, furyl, pyrrolyl, naphthyl, and phenyl. Compounds in which Ar.sup.1 is a 4-halo-substituted isoxazole are more active than the corresponding alkyl-substituted compound and compounds in which Ar.sup.1 is substituted at this position with a higher alkyl tend to exhibit greater affinity for ET.sub.B receptors than the corresponding lower alkyl-substituted compound.