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.
下式化合物
或其药学上可接受的盐,其中 Ar2 特别是苯基、
联苯基或
萘基,R1 和 R2 如本文所定义,可用于调节内皮素的活性。