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Alstonine

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Title: Alstonine  
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Subject: RS-56812, BRL-54443, 6-Chloro-5-ethoxy-N-(pyridin-2-yl)indoline-1-carboxamide, SB-215505, LY-272,015
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Alstonine

Alstonine
Systematic (IUPAC) name
(19α,20α)-16-(Methoxycarbonyl)-19-methyl-3,4,5,6,16,17-hexadehydro-18-oxayohimban-4-ium
Identifiers
CAS Registry Number
ATC code None
PubChem CID:
ChemSpider
Chemical data
Formula C21H21N2O3
Molecular mass 349.402496 g/mol

Alstonine is an indole alkaloid and putative antipsychotic constituent of various plant species including Alstonia boonei, Catharanthus roseus, Picralima nitida, Rauwolfia caffra and Rauwolfia vomitoria.[1] In preclinical studies alstonine attenuates MK-801-induced hyperlocomotion, working memory deficit and social withdrawal.[2] It also possesses anxiolytic-like effects in preclinical studies,[1] attenuates amphetamine-induced lethality and stereotypy as well as apomorphine-induced stereotypy,[1] and attenuates haloperidol-induced catalepsy.[3] These effects appear to be mediated by stimulation of the 5-HT2C receptor.[4] In addition, alstonine, similarly to clozapine, indirectly inhibits the reuptake of glutamate in hippocampal slices.[5] Unlike clozapine however, the effect of which is abolished by the D2 receptor agonist apomorphine, alstonine requires 5-HT2A and 5-HT2C receptors to produce this effect, as it is abolished by antagonists of these receptors. Also unlike clozapine, alstonine lacks pro-convulsant activity in mice.[6]

References

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