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J Med Chem. 1983 Jan;26(1):42-50.

Synthesis and pharmacological studies of 4,4-disubstituted piperidines: a new class of compounds with potent analgesic properties.


A series of 4,4-disubstituted piperidines has been synthesized and evaluated for analgesic activity. Several of these analogues show analgesic potency comparable to morphine in the mouse writhing and tail-flick tests. A number of compounds exhibit high affinity for [3H]naloxone binding sites in rat brain membranes. Among the most potent derivatives are compounds 15 and 48. Although opiate-like, attempts to modify this activity with various substituents have failed to produce antagonistic properties. A few of these analogues also show marked long-lasting serotonin antagonism in the guinea pig serotonin toxicity test and the DL-5-hydroxytryptophan induced head-twitch model in the mouse.

[Indexed for MEDLINE]

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