The invention concerns pharmaceutically useful compounds of the formula I, in which A1, A2, A3, A4, B1, m, Ar, W, X, Y, Z and R1 have any of the meanings defined herein, and their pharmaceutically acceptable salts, and pharmaceutical compositions containing them. The novel compounds possess endothelin receptor antagonist activity and are useful, for example, in the treatment of diseases or medical conditions in which elevated or abnormal levels of endothelin play a significant causative role. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
本发明涉及公式I的具有药用价值的化合物,其中A1、A2、A3、A4、B1、m、Ar、W、X、Y、Z和R1具有本文所定义的任何含义,以及其药学上可接受的盐和含有它们的药物组合物。这些新化合物具有内皮素受体拮抗活性,例如在治疗内皮素
水平升高或异常对疾病或医疗条件具有显著的致因作用的情况下非常有用。本发明还涉及制造这些新化合物的过程以及在医疗治疗中使用这些化合物的方法。