Therapeutically useful heterocyclic indole compounds

摘要

A therapeutically useful compound of formula I <IMAGE> or pharmaceutically acceptable salts thereof where A and B are oxygen, sulfur or CH2, X is an amine moiety as defined herein and R1 and R2 are as defined herein having 5HT1A neuronal activity and/or dopamine receptor activity useful in the treatment of central nervous system and cardiovascular system disorders.