Pardoprunox, also known as SLV-308; DU-126891; SME-308, is dopamine D2/5-HT1A receptor agonist potentially for the treatment of Parkinson's disease. It was also being investigated for the treatment of depression and anxiety but these indications appear to have been abandoned. Pardoprunox acts as a D2 (pKi = 8.1) and D3 receptor (pKi = 8.6) partial agonist (IA = 50% and 67%, respectively) and 5-HT1A receptor (pKi = 8.5) full agonist (IA = 100%). It also binds to D4 (pKi = 7.8), α1-adrenergic (pKi = 7.8), α2-adrenergic (pKi = 7.4), and 5-HT7 receptors (pKi = 7.2) with lower affinity.
CAS Number: 269718-84-5
Molecular Weight: 233.27
Chemical Name: 7-(4-methylpiperazin-1-yl)-3H-1,3-benzoxazol-2-one
Appearance: Solid Power.
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: Soluble in DMSO
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
Pardoprunox (SLV-308) acts as a potent but partial D2 receptor agonist (pEC50= 8.0 and pA2=8.4) with an efficacy of 50% on forskolin stimulated cAMP accumulation. At human recombinant dopamine D3 receptors, Pardoprunox acts as a partial agonist in the induction of [(35)S]GTPgammaS binding (intrinsic activity of 67%; pEC50=9.2) and antagonized the dopamine induction of [(35)S]GTPgammaS binding (pA2=9.0). Pardoprunox acts as a full 5-HT1A receptor agonist on forskolin induced cAMP accumulation at cloned human 5-HT1A receptors but with low potency (pEC50=6.3).
- Glennon JC, et al. In vitro characterization of SLV308 (7-[4-methyl-1-piperazinyl]-2(3H)-benzoxazolone, monohydrochloride): a novel partial dopamine D2 and D3 receptor agonist and serotonin 5-HT1A receptor agonist. Synapse. 2006 Dec 15;60(8):599-608.
- Bronzova J, et al. Double-blind study of pardoprunox, a new partial dopamine agonist, in early Parkinson's disease. Mov Disord. 2010 Apr 30;25(6):738-46.
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