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Pyrimidines, Piperazines

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Cyclic compounds (9)
Six-membered rings (9)
Pharmaceuticals (5)
Drugs acting on the nervous system (4)
Psychoactive drugs (4)
Antidepressants (3)
Antipsychotics (3)
Anxiolytics (3)
Azapirones (3)
Five-membered rings (3)
Psychopharmacology (3)
Alpha blockers (2)
Alpha-2 blockers (2)
Antihypertensive agents (2)
Cycloalkanes (2)
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Drugs acting on the genito-urinary system (2)
Drugs for benign prostatic hyperplasia (2)
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Adamantanes (1)
Antiparkinsonian agents (1)
Aromatic compounds (1)
Chloroarenes (1)
Cyclopentanes (1)
Dopamine agonists (1)
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Pyrazoles (1)
Pyrrolidines (1)
Triazines (1)
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Lesopitron (132449-46-8)  
Lesopitron (E-4424) is a selective full agonist of the 5-HT1A receptor which is structurally related to the azapirones. In 2001 it was under development by Esteve as an anxiolytic for the treatment of generalized anxiety disorder (GAD). It made it to phase II clinical trials but was apparently discontinued as no new information on lesopitron has surfaced since.
urapidil (34661-75-1)  
urapidil, 2,3-(14)C2-labeled  ·  6-(3-(4-(o-methoxyphenyl)-1-piperazinyl)propylamino)-1,3-dimethyluracil  ·  urapidil monohydrochloride
Urapidil is a sympatholytic antihypertensive drug. It acts as an α1-adrenoceptor antagonist and as an 5-HT1A receptor agonist. Although an initial report suggested that urapidil was also an α2-adrenoceptor agonist, this was not substantiated in later studies that demonstrated it was devoid of agonist actions in the dog saphenous vein and the guinea-pig ileum.
piribedil (3605-01-4)  
ET 495  ·  Trivastal  ·  Piribedil Mesylate
Piribedil (trade names Pronoran, Trivastal Retard, Trastal, Trivastan, Clarium and others) is an antiparkinsonian agent and piperazine derivative which acts as a D2 and D3 receptor agonist. It also has α2-adrenergic antagonist properties.
2-(1-Piperazinyl)pyrimidine (125523-53-7, 20980-22-7)  
MJ-13653  ·  1-(2-pyrimidinyl)piperazine  ·  MJ 13653
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) and, to a much lesser extent, as a partial agonist of the 5-HT1A receptor (Ki = 414 nM; Emax = 54%). 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.
Tirilazad (110101-66-1)  
Tirilazad is a drug that has been proposed to treat acute ischaemic stroke. When tested on animal models, tirilazad protects brain tissue, and reduces brain damage. However, the drug fails to treat, and even worsens a stroke when studied on a human being.
Tandospirone (87760-53-0)  
Tandospirone (brand name Sediel) is an anxiolytic and antidepressant drug used in China and Japan, where it is marketed by Dainippon Sumitomo Pharma. It is a member of the azapirone class of drugs and is closely related to other azapirones like buspirone and gepirone.
Eptapirone (179756-85-5)  
Eptapirone (F-11,440) is a very potent and highly selective 5-HT1A receptor full agonist of the azapirone family. Its affinity for the 5-HT1A receptor was reported to be 4.8 nM (Ki) (or 8.33 (pKi)), and its intrinsic activity approximately equal to that of serotonin (i.e., 100%). Eptapirone and related high-efficacy 5-HT1A full and super agonists such as befiradol and F-15,599 were developed under the hypothesis that the maximum exploitable therapeutic benefits of 5-HT1A receptor agonists might not be able to be seen without the drugs employed possessing sufficiently high intrinsic activity at the receptor.
IPSAPIRONE (95847-70-4)  
Ipsapirone is a selective 5-HT1A receptor partial agonist of the piperazine and azapirone chemical classes. It has antidepressant and anxiolytic effects. Ipsapirone was studied in several placebo-controlled trials for depression and continues to be used in research.
Adatanserin (127266-56-2)  
Adatanserin (WY-50,324, SEB-324) is a mixed 5-HT1A receptor partial agonist and 5-HT2A and 5-HT2C receptor antagonist. It was under development by Wyeth as an antidepressant but was ultimately not pursued. Adantaserin has been shown to be neuroprotective against ischemia-induced glutamatergic excitotoxicity, an effect which appears to be mediated by blockade of the 5-HT2A receptor.
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Pyrimidines
Piperazines