申请人:Astra Pharmaceuticals Limited
公开号:US05747496A1
公开(公告)日:1998-05-05
Compounds of the formula (I) ##STR1## wherein B is O or CH.sub.2 ; X is selected from NR.sup.1 R.sup.2, SR.sup.1, and C.sub.1 -C.sub.7 alkyl; Y is selected SR.sup.1, NR.sup.1 R.sup.2, and C.sub.1 -C.sub.7 alkyl; R.sup.1 and R.sup.2 is each and independently selected from H, or C.sub.1 -C.sub.7 alkyl optionally substituted upon or within the alkyl chain by one or more of O, S, N or halogen; R.sup.3 and R.sup.4 are both H, or R.sup.3 and R.sup.4 together form a bond; A is COOH, C(O)NH(CH.sub.2).sub.p COOH, C(O)N\x9b(CH.sub.2).sub.q COOH!.sub.2, C(O)NHCH(COOH)(CH.sub.2).sub.r COOH, or 5-tetrazolyl, wherein p, q and r is each and independently 1, 2 or 3; as well as pharmaceutically acceptable salts and prodrugs thereof, pharmaceutical compositions comprising the novel compounds and use of the compounds in therapy. Also within the scope of the invention are novel intermediates to the novel compounds. The novel compounds are in particular useful in the prevention of platelet aggregation.
公式(I)的化合物##STR1##其中B为O或CH.sub.2;X选自NR.sup.1R.sup.2、SR.sup.1和C.sub.1-C.sub.7烷基;Y选自SR.sup.1、NR.sup.1R.sup.2和C.sub.1-C.sub.7烷基;R.sup.1和R.sup.2分别且独立地选自H,或C.sub.1-C.sub.7烷基,该烷基可选在或在烷基链内部由一个或多个O、S、N或卤素取代;R.sup.3和R.sup.4均为H,或R.sup.3和R.sup.4一起形成键;A为COOH、C(O)NH(CH.sub.2).sub.pCOOH、C(O)N\x9b(CH.sub.2).sub.qCOOH!.sub.2、C(O)NHCH(COOH)(CH.sub.2).sub.rCOOH或5-四唑基,其中p、q和r各自且独立地为1、2或3;以及其药学上可接受的盐和前药,包括含有这些新化合物的药物组合物以及这些化合物在治疗中的用途。此外,该发明范围还包括新化合物的新中间体。这些新化合物特别适用于预防血小板聚集。