申请人:Pfizer Inc.
                            
                            
                                公开号:US20030232848A1
                            
                            
                                公开(公告)日:2003-12-18
                            
                            Compounds of formulae (IA) and (IB):
1
wherein R
1
, R
2
, R
3
, Ar
1
and X are as defined above, are endothelin antagonists. The compounds are therefore useful in the treatment of a variety of conditions mediated by endothelin, such as restenosis, renal failure and systemic and pulmonary hypertension.
                            式子(IA)和(IB)的化合物:1其中R1,R2,R3,Ar1和X的定义如上所述,是内皮素拮抗剂。因此,这些化合物在治疗由内皮素介导的各种疾病,如再狭窄,肾衰竭和全身性和肺性高血压方面是有用的。