申请人:Duphar International Research B.V.
公开号:US05198437A1
公开(公告)日:1993-03-30
1,7-Annelated esters and amides of indolecarboxylic acids having formula 2, ##STR1## wherein R.sub.1 is halogen; n has a value of 0-2; Z together with the carbon atom, the nitrogen atom and the intermediate carbon atom, forms a heterocyclic group consisting of 6 ring atoms in which, besides the nitrogen atom already present, a second hetero atom of S is present, which ring may be annelated with a benzene ring; R.sub.3 is hydrogen, halogen, alkyl, alkoxy or alkylthio having 1-4 carbon atoms; and R.sub.2 is a group --CO--Y--R.sub.7 wherein Y is an oxygen atom, or a group --NR.sub.6, wherein R.sub.6 is hydrogen or alkyl having 1-3 C-atoms, and R.sub.7 represents a group of the formula ##STR2## wherein p has the value 1 or 2, q has the value 2 or 3, R.sub.8 is hydrogen or alkyl or hydroxyalkyl having 1 or 2 C-atoms, r is 0 or 1, and R.sub.10 is absent. The compounds and their salts are very strong selective antagonists of neuronal 5-hydroxytryptamine (5-HT) receptors, and can be used for the treatment of symptoms which are caused by over-stimulation of those receptors.
1,7-环戊基羧酸酯和酰胺的化合物,其化学式为2,其中R.sub.1是卤素;n的值为0-2;Z与碳原子、氮原子和中间碳原子一起形成一个杂环基团,由6个环原子组成,在该杂环基团中,除了已经存在的氮原子外,还存在第二个S杂原子,该环可以与苯环相接;R.sub.3是氢、卤素、烷基、烷氧基或烷硫基,具有1-4个碳原子;R.sub.2是一个--CO--Y--R.sub.7基团,其中Y是氧原子,或者是一个--NR.sub.6基团,其中R.sub.6是氢或具有1-3个碳原子的烷基,R.sub.7代表一个公式为##STR2##的基团,其中p的值为1或2,q的值为2或3,R.sub.8是氢、烷基或具有1或2个碳原子的羟基烷基,r为0或1,R.sub.10不存在。这些化合物及其盐是非常强的选择性神经元5-羟色胺(5-HT)受体拮抗剂,可用于治疗由于这些受体过度刺激而引起的症状。