DERIVATIVES OF AZETIDINE AND PYRROLIDINE

摘要

The invention relates to a compound having formula (I) wherein A is an optionally unsaturated 5- or 6-membered ring, which may comprise a heteroatom selected from N, O and S and which may be substituted with oxo or (1-6C)alkyl; R<1>, R<2> and R<3> are independently H, (1-6C)alkyl, (1-6C)alkoxy, (1-6C)alkoxy-(1-6C)alkyl, carbo(1-6C)alkoxy or halogen; X is O or S; and n is 1 or 2; or a pharmaceutically acceptable salt thereof, with the exception of 3-(naphth-1-yl-oxy)-pyrrolidin and 3-(5,6,7,8-tetrahydro-naphth-1-yl-oxy)-pyrrolidin. The compounds of the invention have antidepressant activity and can be used in treating or preventing serotonin-related diseases.