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Chemical compound
1-(2-Pyrimidinyl)piperazine (1-PP, 1-PmP) is a chemical compound and piperazine derivative. It is known to act as an antagonist of the α2-adrenergic receptor (Ki = 7.3–40 nM)[1] and, to a much lesser extent, as a partial agonist of the 5-HT1A receptor (Ki = 414 nM; Emax = 54%).[2][3] It has negligible affinity for the dopamine D2, D3, and D4 receptors (Ki > 10,000 nM) and does not appear to have significant affinity for the α1-adrenergic receptors.[4][additional citation(s) needed] Its crystal structure has been determined.[5]
^Blier P, Curet O, Chaput Y, de Montigny C (1991). "Tandospirone and its metabolite, 1-(2-pyrimidinyl)-piperazine--II. Effects of acute administration of 1-PP and long-term administration of tandospirone on noradrenergic neurotransmission". Neuropharmacology. 30 (7): 691–701. doi:10.1016/0028-3908(91)90176-c. PMID 1681447. S2CID 44297577.
^Zuideveld KP, Rusiç-Pavletiç J, Maas HJ, Peletier LA, Van der Graaf PH, Danhof M (2002). "Pharmacokinetic-pharmacodynamic modeling of buspirone and its metabolite 1-(2-pyrimidinyl)-piperazine in rats". J. Pharmacol. Exp. Ther. 303 (3): 1130–7. doi:10.1124/jpet.102.036798. PMID 12438536. S2CID 14139919.
^Gobert A, Newman-Tancredi A, Rivet J, Audinot V, Millan M (1997). "P.1.047 Yohimbine is a potent, partial agonist at rat and cloned, human serotonin1A receptors: A comparison to buspirone and its metabolite, 1-pyrimidinylpiperazine". European Neuropsychopharmacology. 7: S149–S150. doi:10.1016/S0924-977X(97)88496-9. ISSN 0924-977X. S2CID 54355225.
^Bergman J, Roof RA, Furman CA, Conroy JL, Mello NK, Sibley DR, Skolnick P (2013). "Modification of cocaine self-administration by buspirone (buspar®): potential involvement of D3 and D4 dopamine receptors". Int. J. Neuropsychopharmacol. 16 (2): 445–58. doi:10.1017/S1461145712000661. PMC 5100812. PMID 22827916.
^Yamuna TS, Jasinski JP, Kaur M, Anderson BJ, Yathirajan HS (1 October 2014). "Crystal structures of 4-(pyrimidin-2-yl)piperazin-1-ium chloride and 4-(pyrimidin-2-yl)piperazin-1-ium nitrate". Acta Crystallographica Section E: Structure Reports Online. 70 (10): 203–206. Bibcode:2014AcCrE..70..203Y. doi:10.1107/S1600536814020169. PMC 4257175. PMID 25484652.
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