Disclosed are compounds of the formula:
and the pharmaceutically acceptable salts thereof, wherein W, Q, X, X
1
, Y and Z are as defined herein. These compounds bind with high selectivity and/or high affinity to the benzodiazepine site of GABA
A
receptors and are therefore useful in the treatment of central nervous system (CNS) diseases and as probes for the localization of GABA
A
receptors in tissue samples. Also disclosed are intermediates useful in the preparation of these compounds.
本发明涉及下列公式的化合物及其药学上可接受的盐,其中W、Q、X、X1、Y和Z的定义如下。这些化合物与
GABAA受体的苯二氮平位点高选择性和/或高亲和力结合,因此在中枢神经系统疾病的治疗中以及作为组织样品中
GABAA受体的定位探针中有用。本发明还涉及制备这些化合物的中间体。