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2-(piperazin-1-yl)pyrimidine
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InChI=1S/C8H12N4/c1-2-10-8(11-3-1)12-6-4-9-5-7-12/h1-3,9H,4-7H2 YKey: MRBFGEHILMYPTF-UHFFFAOYSA-N Y
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1-(2-Pyrimidinyl)piperazine (1-PP, 1-PmP) is a chemical compound and piperazine derivative. It is known to act as an α2-adrenergic receptor antagonist,[1] and as a 5-HT1A receptor partial agonist to a much lesser extent.[2] It does not appear to have any significant affinity for the D2 or α1-adrenergic receptors.
A number of pyrimidinylpiperazine derivatives are drugs, including:
The anxiolytics are also classified as azapirones due to the azaspirodecanedione moiety in their structures. 1-PP is a common metabolite of most or all of the listed agents.[1][3] Alnespirone, binospirone, and enilospirone, despite being azapirones, are not piperazines and therefore do not metabolize to 1-PP, and while perospirone and tiospirone are piperazines, they are instead benzothiazole-substituted piperazines and do not metabolize to 1-PP either.
* Note that many TCAs, TeCAs, antipsychotics, ergolines, and some piperazines like buspirone and trazodone all antagonize α1-adrenergic receptors as well, which contributes to their side effects such as orthostatic hypotension.
* Note that many atypical antipsychotics and azapirones like buspirone (via metabolite 1-PP) antagonize α2-adrenergic receptors as well.
* Note that MAO-B inhibitors also influence norepinephrine/epinephrine levels since they inhibit the breakdown of their precursor dopamine.
Methamphetamine, Amphetamine, Mdma, Piperazine, Norepinephrine