BICYCLIC AND TRICYCLIC HETEROAROMATIC COMPOUNDS

摘要

Disclosed are compounds of formula (I) and the pharmaceutically acceptable salts thereof, wherein W, Q, X, X1, Y and Z are as defined herein. These compounds bind with high selectivity and/or high affinity to the benzodiazepine site of GABAA receptors and re therefore useful in the treatment of central nervous system (CNS) diseases and as probes for the localization of GABAA receptors in tissue samples. Also disclosed are intermediates useful in the preparation of these compounds.