申请人:Reckitt & Colman Products Limited
公开号:US04178371A1
公开(公告)日:1979-12-11
Tetrapeptide amides of the formula ##STR1## wherein R.sup.1, R.sup.8, R.sup.x, B and D represent certain specified substituent groups. The compounds exhibit pharmacological activity when tested in vitro in the transmurally stimulated guinea pig ileum preparation indicating their affinity for opiate receptor sites, and also in vivo tests, with intravenous administration, indicating their analgesic effects, and hence their utility as analgesic agents.
公式为 ##STR1## 的四肽酰胺化合物,其中R.sup.1、R.sup.8、R.sup.x、B和D代表某些指定的取代基团。当在体外的经过横膜刺激的豚鼠回肠制备中测试时,这些化合物表现出药理活性,表明它们与阿片受体位点有亲和力,同时在体内测试中,通过静脉注射显示出它们的镇痛作用,因此具有作为镇痛剂的实用价值。