Structure−Activity Relationships of N2-Aryl-3-(isoxazolylsulfamoyl)-2-thiophenecarboxamides as Selective Endothelin Receptor-A Antagonists
摘要:
We report here that N-2-aryl-3-(isoxazolylsulfamoyl)-2-thiophenecarboxamides are potent and selective small molecule ETA receptor antagonists. The aryl group was subjected to extensive structural modification. With monosubstitution, the para position was most useful in increasing potency, with methyl being preferred. With disubstitution, 2,4-disubstitution further enhanced activity with methyl or cyano groups being preferred at the 2-position. In this series, a benzo-[d][1,3]dioxole group is equivalent to a 4-methyl group in in vitro activity and afforded the compounds with both in vivo activity and moderate half-lives.
Biphenylsulfonamides and derivatives thereof that modulate the activity of endothelin
申请人:——
公开号:US20020095041A1
公开(公告)日:2002-07-18
Biphenylsulfonamides and methods for modulating or altering the activity of the endothelin family of peptides are provided. In particular, bicyclic or tricyclic carbon or heterocyclic ring biphenylsulfonamides 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.
Thienyl-, furyl-, pyrrolyl- and biphenylsulfonamides and derivatives thereof that modulate the activity of endothelin
申请人:TEXAS BIOTECHNOLOGY CORPORATION
公开号:EP1048657A1
公开(公告)日:2000-11-02
Biphenylsufonamides of the following formula and methods for modulating or altering the activity of the endothelin family of peptides are provided. The sulfonamides may be used for inhibiting the binding of an endothelin peptide to an endothelin receptor by contacting the receptor with the sulfonamide
or a pharmaceutically acceptable salt, acid or ester thereof, wherein Ar2 is
and wherein Ar1, R13 and R26 are as defined herein.