Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-hexahydrocyclopent[b]indoles and related compounds, intermediates and a process for the preparation thereof and their use as medicaments
There are disclosed various compounds of the formula below, <CHEM> where n, X and R1 through R4 are as defined in the specification, which are useful for alleviating various memory dysfunctions characterized by a cholinergic deficit such as Alzheimer's disease. Compounds of this invention also inhibit monoamine oxidase and/or act at central alpha 2-adrenergic receptors, and hence are useful as antidepressants. The invention relates also to intermediates and a process for the preparation of the above compounds.