Iodoethane → 7-(4-chlorobenzyl)-8-(3-ethoxypropyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-1H-purine-2,6(3H,7H)-dione

HRID 2200676Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2200676
[Cl:1][C:2]1[CH:34]=[CH:33][C:5]([CH2:6][N:7]2[C:15]3[C:14](=[O:16])[N:13]([CH2:17][CH2:18][CH2:19][O:20][CH:21]4[CH2:26][CH2:25][CH2:24][CH2:23][O:22]4)[C:12](=[O:27])[N:11]([CH3:28])[C:10]=3[N:9]=[C:8]2[CH2:29][CH2:30][CH2:31][OH:32])=[CH:4][CH:3]=1.[H-].[Na+].I[CH2:38][CH3:39]>CN(C=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][N:7]2[C:15]3[C:14](=[O:16])[N:13]([CH2:17][CH2:18][CH2:19][O:20][CH:21]4[CH2:26][CH2:25][CH2:24][CH2:23][O:22]4)[C:12](=[O:27])[N:11]([CH3:28])[C:10]=3[N:9]=[C:8]2[CH2:29][CH2:30][CH2:31][O:32][CH2:38][CH3:39])=[CH:33][CH:34]=1

Komponenten

5

Edukt 3

HCID 6340IodoethaneHCID 24758Sodium hydrideHCID 904023477-(4-chlorobenzyl)-8-(3-hydroxypropyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-1H-purine-2,6(3H,7H)-dione

Produkt 1

HCID 904026847-(4-chlorobenzyl)-8-(3-ethoxypropyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-1H-purine-2,6(3H,7H)-dioneAusbeute 90,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 7-(4-chlorobenzyl)-8-(3-hydroxypropyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-1H-purine-2,6(3H,7H)-dione (100 mg, 0.204 mmol) in DMF (3 mL) was added sodium hydride (24.5 mg, 0.612 mmol, 60% dispersion in mineral oil) at 0° C. The mixture was stirred at room temperature for 30 min. Iodoethane (63.6 mg, 0.408 mmol) was added to the reaction and it was stirred at room temperature for 16 h. The reaction was partitioned between ethyl acetate and brine. The organic phase was dried and concentrated to give a crude product, which was purified by silica gel chromatography eluting with petroleum ether/ethyl acetate (2:1 to 1:1) to give 7-(4-chlorobenzyl)-8-(3-ethoxypropyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-1H-purine-2,6(3H,7H)-dione (96 mg, 90.6% yield) as a yellow solid. LCMS retention time 1.870 min; LCMS MH+ 519.

Aufarbeitung

  1. stirringwas stirred at room temperature for 16 h
  2. customThe reaction was partitioned between ethyl acetate and brine
  3. customThe organic phase was dried
  4. concentrationconcentrated
  5. customto give a crude product, which
  6. customwas purified by silica gel chromatography
  7. washeluting with petroleum ether/ethyl acetate (2:1 to 1:1)

Quellen und Nachweise

ORD-Eintrag
ord-7302c3e9a69d46e3a31b11a89d04f289
Quelldatensatz
uspto-grants-2016_06
Patentnummer
US09359359B2

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