| abstract |
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 <CHEM> or a pharmaceutically acceptable salt, acid or ester thereof, wherein Ar<2> is <CHEM> and wherein Ar<1>, R<13> and R<26> are as defined herein.m |