N-¢(4-¢3-SUBSTITUTED PYRIDYL! PIPERAZINO)ALKYL!AZASPIRODECANEDIONES 2-¢4-¢4-(7,9-Dioxo-8-azaspiro¢4.5!decan-8-yl)butyl!-1-piperazinyl!pyridine-3-carbonitrile, 2-¢4-¢4-(7,9-dioxo-8-azaspiro-¢4.5!decan-8-yl)butyl!-3-methyl-1-piperazinyl!pyridine-3-carbonitrile and 8-¢4-¢4-(3-methoxy-2-pyridinyl)-1-piperazinyl!butyl!-8-azaspiro-¢4.5!decane-7,9-dione are psychotropic compounds.
N-[(4-[3-SUBSTITUTED PYRIDYL] PIPERAZINO)ALKYL]AZASPIRODECANEDIONES