2-Naphthalenecarboxaldehyde → 7-fluoro-1-(2-(4-((naphthalen-2-yl)methylamino)piperidin-1-yl)ethyl)quinoxalin-2(1H)-one

HRID 39958

Reaktionsgleichung

Reaktionsgleichung von HRID 39958
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][N:10]2[C:19]3[C:14](=[CH:15][CH:16]=[C:17]([F:20])[CH:18]=3)[N:13]=[CH:12][C:11]2=[O:21])[CH2:4][CH2:3]1.[CH:22]1[C:31]2[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=2)[CH:25]=[CH:24][C:23]=1[CH:32]=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(O)(=O)C.C(Cl)(Cl)Cl>[F:20][C:17]1[CH:18]=[C:19]2[C:14]([N:13]=[CH:12][C:11](=[O:21])[N:10]2[CH2:9][CH2:8][N:5]2[CH2:4][CH2:3][CH:2]([NH:1][CH2:32][C:23]3[CH:24]=[CH:25][C:26]4[C:31](=[CH:30][CH:29]=[CH:28][CH:27]=4)[CH:22]=3)[CH2:7][CH2:6]2)=[CH:15][CH:16]=1

Komponenten

7

Edukt 4

HCID 62012-NaphthalenecarboxaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 593979071-(2-(4-aminopiperidin-1-yl)ethyl)-7-fluoroquinoxalin-2(1H)-one

Produkt 1

HCID 593980017-fluoro-1-(2-(4-((naphthalen-2-yl)methylamino)piperidin-1-yl)ethyl)quinoxalin-2(1H)-oneAusbeute 74,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 176Acetic AcidLösungsmittelHCID 6212ChloroformLösungsmittel

Versuchsvorschrift

To 10 mL of a chloroform solution containing 252 mg of 1-(2-(4-aminopiperidin-1-yl)ethyl)-7-fluoroquinoxalin-2(1H)-one and 136 mg of 2-naphtoaldehyde, 50 μL of acetic acid were added, and stirred at room temperature for 1 hour. To the reaction mixture, 276 mg of sodium triacetoxyborohydride was added, and stirred overnight. Aqueous saturated sodium hydrogen carbonate solution was added, the organic layer was separated. The organic layer was washed with aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [Silica Gel; Fuji Silysia Chemical Ltd., Chromatorex-NH, eluent; ethyl acetate:hexane=2:1], to give 279 mg of 7-fluoro-1-(2-(4-((naphthalen-2-yl)methylamino)piperidin-1-yl)ethyl)quinoxalin-2(1H)-one as pale yellow solid.

Aufarbeitung

  1. additionwere added
  2. stirringstirred overnight
  3. customthe organic layer was separated
  4. washThe organic layer was washed with aqueous saturated sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was removed under reduced pressure
  7. customThe residue thus obtained
  8. customwas purified by silica gel column chromatography [Silica Gel; Fuji Silysia Chemical Ltd., Chromatorex-NH, eluent; ethyl acetate:hexane=2:1]

Quellen und Nachweise

ORD-Eintrag
ord-972ad6064f67487595a6e14f924ecb66
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08524738B2

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