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Coronaridine : ウィキペディア英語版 | Coronaridine
Coronaridine, also known as 18-carbomethoxyibogamine, is an alkaloid found in ''Tabernanthe iboga'' and related species,including ''Tabernaemontana divaricata'' for which (under the now obsolete synonym ''Ervatamia coronaria'') it was named. Coronaridine persistently reduces the self-administration of cocaine and morphine in rats. ==Pharmacology== Coronaridine has been reported to bind to an assortment of molecular sites, including: μ-opioid (Ki = 2.0 μM), δ-opioid (Ki = 8.1 μM), and κ-opioid receptors (Ki = 4.3 μM), NMDA receptor (Ki = 6.24 μM) (as an antagonist), and nAChRs (as an antagonist). It has also been found to inhibit the enzyme acetylcholinesterase, act as a voltage-gated sodium channel blocker, and displays estrogenic activity in rodents.〔〔 In contrast to ibogaine and other iboga alkaloids, coronaridine does not bind to either the σ1 or σ2 receptor.〔
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