摘要:
A series of (3,5-dioxopiperazin-1-yl)ergoline derivatives has been synthesised and evaluated in vitro and in vivo for their dopaminergic D-1 and D-2 components. The structural contributions to the pharmacological profile of the ergoline skeleton, its substituents on positions 1, 2, 6, 9, and the 3,5-dioxopiperazin-1-yl portion of the molecule were examined. Structure-activity relationships within this series suggested that substitution on the ergoline skeleton in position 1 or 2 and on the 3,5-dioxopiperazin-4-nitrogen generated compounds with a spectrum of dopamine agonistic/antagonistic activity sensitive to both the nature and position of substituents. (C) Elsevier, Paris.