Compounds of the formula: ##STR1## where A, B, R.sup.1 -R.sup.8 are as described herein are endothelin inhibitors that can be used in treating diseases associated with endothelin, such as high blood pressure. Chemical synthesis of these compounds and pharmaceutical compositions containing these compounds are also useful.
                            式中A、B、R.sup.1 -R.sup.8如本文所述的化合物是内皮素
抑制剂,可用于治疗与内皮素相关的疾病,如高血压。这些化合物的
化学合成以及含有这些化合物的药物组合物也是有用的。