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Demethyl analogues of psychoactive methoxyphenalkylamines: synthesis and serotonin receptor affinities.

Richard A Glennon, Stephen M. Liebowitz, D Leming-Doot, John A. Rosecrans

Journal of Medicinal Chemistry September 1980 DOI: 10.1021/jm00183a006 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Preclinical pharmacology study Peer reviewed
Population Isolated rat fundus preparations and rats trained in a discriminative stimulus paradigm
Interventions DOM 5-methoxy-N N-dimethyltryptamine 5-dimethoxyphenalkylamines
Measures discriminative stimulus paradigm
Topics Serotonin
Key points Mono-O-demethylation of several 2,5-dimethoxyphenalkylamines increased affinity for serotonin receptors in isolated rat fundus, and some demethylated compounds produced non-competitive antagonism. For DOM, the 2-hydroxy analogue, but not the 5-hydroxy analogue, produced interoceptive cues similar to those of 5-methoxy-N,N-dimethyltryptamine in rats.

Abstract

Mono-O-demethylation of several 2,5-dimethoxyphenalkylamines increases their affinity for the serotonin receptors of the isolated rat fundus preparation. In several instances, demethylation of methoxyphenalkylamines results in compounds which produce an antagonism which is not of a competitive nature. With respect to 1-(2,5-dimethoxy-4-methylphenyl)-2-aminopropane (DOM), demethylation of the 2-methoxy group alters affinity in a manner which parallels that observed upon demethylation of 5-methoxy-N,N-dimethyltryptamine. Using a discriminative stimulus paradigm, behavioral studies with rats reveal that the 2-hydroxy analogue, but not the 5-hydroxy analogue, of DOM produces effects (interoceptive cues) similar to those produced by 5-methoxy-N,N-dimethyltryptamine.

Comparable studies

Other preclinical and animal studies on serotonin, most cited first.

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