Dimethylformamide → 2-chloro-6-morpholin-4-yl-9-(tetrahydropyran-2-yl)-9H-purine-8-carbaldehyde

HRID 334126

Reaktionsgleichung

[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH:11]2[CH2:16][CH2:15][CH2:14][CH2:13][O:12]2)=[C:4]([N:17]2[CH2:22][CH2:21][O:20][CH2:19][CH2:18]2)[N:3]=1.CN(C)CCN(C)C.[Li]CCCC.CN(C)[CH:38]=[O:39]>C1COCC1>[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[C:7]([CH:38]=[O:39])[N:8]2[CH:11]2[CH2:16][CH2:15][CH2:14][CH2:13][O:12]2)=[C:4]([N:17]2[CH2:22][CH2:21][O:20][CH2:19][CH2:18]2)[N:3]=1

Komponenten

Reaktionsbedingungen

Temperatur: -78 °C

Versuchsvorschrift

To a mixture of 4-(2-chloro-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)morpholine (5 g, 20 mmol) in THF (100 mL) at −78° C. was added tetramethylethylenediamine (3.5 mL, 23 mmol) followed by 2.5 M of n-BuLi (9.3 mL, 23 mmol) dropwise. The reaction was stirred at −78° C. for 1 hour and then N,N-dimethylformamide (2.4 mL, 31 mmol) was added, continue stirred for 1 hours at −78° C. The reaction was quenched with water and extracted with EtOAc. The organic extracts were washed with water, brine, dried over MgSO4 and concentrated. The crude material was triturated with EtOAc to give pure 2-chloro-6-morpholino-9-(tetrahydro-2H-pyran-2-yl)-9H-purine-8-carbaldehyde as a white solid (4.5 g, 80% yield). LC/MS (ESI+): m/z 353 (M+H)

Aufarbeitung

stirringcontinue stirred for 1 hours at −78° C
customThe reaction was quenched with water
extractionextracted with EtOAc
washThe organic extracts were washed with water, brine
dry with materialdried over MgSO4
concentrationconcentrated
customThe crude material was triturated with EtOAc

Quellen und Nachweise

ORD-Eintrag: ord-131de039ae80470b97d3fd473db38d68
Quelldatensatz: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08883799B2

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