Having an affinity against serotonine receptors, compound (I) shown below is useful as a therapeutic agent against various kinds of diseases of central nervous systems.
(wherein R
1
is hydrogen; R
2
is hydrogen or lower alkyl; R
3
is hydrogen, —COOR
12
and so on; R
4
is hydrogen, lower alkyl and so on, or R
3
and R
4
taken together may form ═O or ═S; R
5
is hydrogen, or R
3
and R
5
taken together may form a bond; R
6
is hydrogen, —COOR
24
and so on; R
7
is hydrogen, halogen, lower alkyl and so on; R
8
is hydrogen, lower alkyl, cycloalkyl and so on; R
9
, R
10
and R
11
are each independently hydrogen, halogen, lower alkyl and so on)
以下化合物(I)具有对5-羟
色胺受体的亲和性,因此可用作治疗中枢神经系统各种疾病的治疗剂。(其中R1为氢;R2为氢或低碳基;R3为氢,-COOR12等;R4为氢,低碳基等,或R3和R4可共同形成═O或═S;R5为氢,或者R3和R5共同形成键;R6为氢,-COOR24等;R7为氢,卤素,低碳基等;R8为氢,低碳基,环烷基等;R9,R10和R11各自独立地为氢,卤素,低碳基等)