9-Keto Risperidone

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Names

[ CAS No. ]:
1189516-65-1

[ Name ]:
9-Keto Risperidone

[Synonym ]:
3-{2-[4-(6-Fluoro-1,2-benzoxazol-3-yl)-1-piperidinyl]ethyl}-2-methyl-7,8-dihydro-4H-pyrido[1,2-a]pyrimidine-4,9(6H)-dione
4H-Pyrido[1,2-a]pyrimidine-4,9(6H)-dione, 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-7,8-dihydro-2-methyl-
3-[2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-7,8-dihydro-6H-pyrido[1,2-a]pyrimidine-4,9-dione
9-oxo-risperidone
Paliperidone 9-Keto Impurity

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
594.7±60.0 °C at 760 mmHg

[ Molecular Formula ]:
C23H25FN4O3

[ Molecular Weight ]:
424.468

[ Flash Point ]:
313.5±32.9 °C

[ Exact Mass ]:
424.191071

[ PSA ]:
81.23000

[ LogP ]:
1.60

[ Vapour Pressure ]:
0.0±1.7 mmHg at 25°C

[ Index of Refraction ]:
1.692

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3-(2-(4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl)ethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one-9-carbaldehyde
  • Risperidone
  • 3-(2-chloroethyl)-9-oxo-2-methyl-6,7,8,9-tetrahydro-4H-pyrido-[1,2-a]pyrimidin-4-one
  • 6-Fluoro-3-(4-piperidinyl)-1,2-benzoxazole
  • Paliperidone
  • 6-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole hydrochloride
  • a-Acetobutyrolactone
  • 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
  • DIEA
  • 2-Amino-3-pyridinol

DownStream

  • Paliperidone
  • (R)-9-Hydroxy Risperidone

Related Compounds

  • 9-keto Fluprostenol
  • 9-keto-2-decenoic acid
  • 9-Oxooctadecanoic acid
  • ethyl 9-oxo-2-phenylselanyldecanoate
  • Isopropyl (5Z)-7-[(1R,2R,3R)-3-hydroxy-2-{(3R)-3-hydroxy-4-[3-(tr ifluoromethyl)phenoxy]-1-buten-1-yl}-5-oxocyclopentyl]-5-heptenoa te
  • 9-oxo-10,12-octadecadienoic acid
  • 2-Bromo-N-[(3-methyl-1H-pyrazol-4-yl)methyl]aniline
  • 2,4-difluoro-N-(2-(1-methyl-1H-pyrrol-2-yl)-2-(4-methylpiperazin-1-yl)ethyl)benzenesulfonamide
  • 2-(2-((2-(4-methoxyphenyl)-2-oxoethyl)thio)thiazol-4-yl)-N-phenylacetamide
  • 1-(4-Chloro-3-methoxybenzenesulfonyl)-3,5-dimethylpiperidine
  • (3R)-3-[[2-(1,3-Benzodioxol-5-ylcarbonyl)-1H-indol-3-yl]methyl]-1-methyl-2,5-piperazinedione
  • 4-[6-(3-Methyl-1,2,4-oxadiazol-5-yl)-2-pyrazol-1-ylpyrido[3,2-d]pyrimidin-4-yl]morpholine
  • 1-(2-Methoxy-4,5-dimethylbenzenesulfonyl)-3,5-dimethylpiperidine
  • 4-[6-[3-(Methoxymethyl)-1,2,4-oxadiazol-5-yl]-2-pyrazol-1-ylpyrido[3,2-d]pyrimidin-4-yl]morpholine
  • 1-[(4-Butoxynaphthyl)sulfonyl]-3,5-dimethylpiperidine
  • N-(4-bromo-2-methylphenyl)-5-methyl-3-(4-methylphenyl)-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidine-7-carboxamide
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