申请人:F. HOFFMANN-LA ROCHE AG
                            
                            
                                公开号:EP0902018A2
                            
                            
                                公开(公告)日:1999-03-17
                            
                            
The invention relates to IP receptor antagonists selected from the group of compounds represented by formula
 wherein
R1 is a group represented by formula (A), (B) or (C):
 and other substituents as defined in the specification, and their pharmaceutically acceptable salts, crystal forms therof and pharmaceutical compositions containing them.
                            本发明涉及 IP 受体拮抗剂,这些受体选自由式表示的化合物组。
 式中
R1为式(A)、(B)或(C)所代表的基团:
 和说明书中定义的其它取代基的化合物,以及它们的药学上可接受的盐、它们的晶体形式和含有它们的药物组合物。