Paliperidone

Names

[ Name ]:
Paliperidone

[Synonym ]:
UNII:838F01T721
4H-Pyrido[1,2-a]pyrimidin-4-one, 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-
9-OH-risperidone
3-[2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl]-9-hydroxy-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one
9-Hydroxyrisperidone
3-{2-[4-(6-Fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl}-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Paliperidone
MFCD00871802
3-{2-[4-(6-Fluoro-1,2-benzoxazol-3-yl)-1-piperidinyl]ethyl}-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Biological Activity

[Description]:

Paliperidone (9-hydroxyrisperidone) is a dopamine antagonist of the atypical antipsychotic class of medications. IC50 value:Target: dopamine receptorin vitro: Paliperidone inhibited MK-801 induced neurotoxicity both in MTT metabolism assay (p<0.01) and in lactate dehydrogenase (LDH) activity assay (p<0.01). Moreover, paliperidone could significantly retard MK-801-mediated inhibition of neurite outgrowth (p<0.01) and reverse MK-801-induced decreases of gene expression and phosphorylation of Akt1 and GSK3β (both p<0.01). Furthermore, these protective effects of paliperidone were blocked by pretreatment with a PI3K inhibitor LY294002 [1]. paliperidone works finely at low concentrations (10 and 50 μM) against Aβ(25-35) and MPP(+) and solely protected SH-SY5Y from hydrogen peroxide. At 100 μM, paliperidone completely diminished cell reduction induced by different stressors, regardless of their dosages. Paliperidone was demonstrated with a higher oxidative stress-scavenging properties than other APDs in several aspects, such as generated bulk glutathione, low HNE, and protein carbonyl productions [2].in vivo: The 9OHRIS (4 mg/bwkg) was administred by gastric tube. Four groups were formed depending on the treatment: (1) control, (2) stress, (3) 9OHRIS, (4) stress and parallel 9OHRIS treatment (n=5-6). The expression of APP, MAPK1, β-actin mRNAs from the perfused brain samples was measured with real-time PCR technique [3].Male offspring were treated orally via drinking water with vehicle, risperidone (0.01mg/kg/day), or paliperidone (0.01mg/kg/day) between postnatal days 35 and 56 (periadolescence) and extracellular glutamate levels in the prefrontal cortex were determined by microdialysis at PD 56 [4].

[Related Catalog]:

Signaling Pathways >> GPCR/G Protein >> Dopamine Receptor

Signaling Pathways >> Neuronal Signaling >> Dopamine Receptor

Research Areas >> Neurological Disease

[References]

[1]. Peng L, et al. Paliperidone protects prefrontal cortical neurons from damages caused by MK-801 via Akt1/GSK3β signaling pathway. Schizophr Res. 2013 Jun;147(1):14-23.

[2]. Yang MC, et al. Neuroprotection of paliperidone on SH-SY5Y cells against β-amyloid peptide(25-35), N-methyl-4-phenylpyridinium ion, and hydrogen peroxide-induced cell death. Psychopharmacology (Berl). 2011 Oct;217(3):397-410.

[3]. Kalman S, et al. 9-hydroxy-risperidone (9OHRIS) prevents stress-induced β-actin overexpression in rat hippocampus. Neuropsychopharmacol Hung. 2010 Sep;12(3):425-31.

[Related Small Molecules]

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Boiling Point ]:
612.3±65.0 °C at 760 mmHg

[ Melting Point ]:
158-160°C

[ Molecular Formula ]:
C₂₃H₂₇FN₄O₃

[ Molecular Weight ]:
426.484

[ Flash Point ]:
324.1±34.3 °C

[ Exact Mass ]:
426.206726

[ PSA ]:
84.39000

[ LogP ]:
1.52

[ Vapour Pressure ]:
0.0±1.9 mmHg at 25°C

[ Index of Refraction ]:
1.692

[ Storage condition ]:
Room temp

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UV1164720

CHEMICAL NAME :: 4H-Pyrido(2,1-a)pyrimidin-4-one, 6,7,8,9-tetrahydro-3-(2-(4-(6-fluro-1,2-benzisoxazol- 3-yl)-1-piperidinyl)e thyl)-9-hydroxy-2-methyl-

CAS REGISTRY NUMBER :: 144598-75-4

LAST UPDATED :: 199509

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C23-H27-F-N4-O3

MOLECULAR WEIGHT :: 426.54

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 65 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: DDREDK Drug Development Research. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1981- Volume(issue)/page/year: 33,399,1994

Safety Information

[ Symbol ]:

GHS06

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H301

[ Precautionary Statements ]:
P301 + P310

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges

[ Hazard Codes ]:
T: Toxic;

[ Risk Phrases ]:
R25

[ Safety Phrases ]:
S45

[ RIDADR ]:
UN 2811 6.1/PG 3

[ RTECS ]:
UV1164720

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

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