Indole derivatives of formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be hydrogen or lower alkyl optionally substituted by halogen; X represents oxygen or sulfur; A.sup.1 represents a straight or branched alkylene chain containing from 2 to 4 carbon atoms; R.sup.5 is hydrogen or a straight or branched alkyl group; A.sup.2 is a straight or branched, saturated or unsaturated hydrocarbon chain containing from 2 to 6 carbon atoms; and R.sup.6 is selected from a group consisting of various structures, have been found to exhibit central nervous system activities.
式(I)的
吲哚衍
生物:##STR1## 其中,R.sup.1,R.sup.2,R.sup.3和R.sup.4可以是氢或低碳烷基,可选地被卤素取代;X代表氧或
硫;A.sup.1代表含有2至4个碳原子的直链或支链烷基链;R.sup.5是氢或直链或支链烷基;A.sup.2是含有2至6个碳原子的直链或支链、饱和或不饱和的碳氢链;R.sup.6从各种结构中选择,已发现具有中枢神经系统活性。