申请人:Imperial Chemical Industries PLC
公开号:US04435405A1
公开(公告)日:1984-03-06
Compounds of the formula: ##STR1## wherein A stands for the radical --(CH.sub.2).sub.2 -- which may bear one or two defined substituents; R.sup.1 stands for a (3-4C) alkyl or cyclopropyl radical, or a phenyl radical which may optionally bear one or two defined substituents, or a heteroaryl radical of five or six ring atoms which may optionally bear a (1-3C)alkyl substituent; R.sup.2 and R.sup.3 stand for hydrogen or a (1-2C)alkyl radical, or R.sup.2 stands for a (2-4C)alkylene radical which is linked to one of the carbon atoms forming the two-carbon-atom-backbone of A so as to form, together with the adjacent nitrogen atom, a pyrrolidinyl or piperidyl radical; and one of R.sup.4 and R.sup.5 stands for hydrogen, and the other stands for hydrogen, a halogen atom or a (1-3C)alkyl or (1-3C)alkoxy radical; and acid-addition salts thereof. Processes for the manufacture of said compounds. Pharmaceutical compositions comprising one of said compounds and a pharmaceutical diluent or carrier. The compounds are 5-hydroxytryptamine antagonists.
该公式化合物为:##STR1## 其中A代表基团--(CH.sub.2).sub.2 --,可以带有一个或两个定义的取代基;R.sup.1代表(3-4C)烷基或环丙基基团,或者可能带有一个或两个定义的取代基的苯基基团,或者是五个或六个环原子的杂环芳基基团,可以选择性地带有一个(1-3C)烷基取代基;R.sup.2和R.sup.3代表氢或(1-2C)烷基基团,或者R.sup.2代表与A的两碳原子骨架中的一个碳原子相连的(2-4C)烷基基团,以便与相邻的氮原子一起形成吡咯啉基或哌啶基;R.sup.4和R.sup.5中的一个代表氢,另一个代表氢、卤素原子或(1-3C)烷基或(1-3C)烷氧基基团;以及它们的酸盐。制造这些化合物的方法。包括其中一种化合物和药用稀释剂或载体的药物组合物。这些化合物是5-羟色胺拮抗剂。