Cesium carbonate → 2-{(3E)-4-[2-ethoxymethyl-1-(3-isopropoxypropyl)-1H-imidazo[4,5-c]quinolin-7-yl]but-3-enyl}-1H-isoindole-1,3(2H)-dione

HRID 244815

Reaktionsgleichung

Reaktionsgleichung von HRID 244815
Br[C:2]1[CH:3]=[CH:4][C:5]2[C:6]3[N:14]([CH2:15][CH2:16][CH2:17][O:18][CH:19]([CH3:21])[CH3:20])[C:13]([CH2:22][O:23][CH2:24][CH3:25])=[N:12][C:7]=3[CH:8]=[N:9][C:10]=2[CH:11]=1.[CH2:26]([N:30]1[C:38](=[O:39])[C:37]2[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=2)[C:31]1=[O:40])[CH2:27][CH:28]=[CH2:29].C(=O)([O-])[O-].[Cs+].[Cs+].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C(OCC)(=O)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.CN(C)C=O>[CH2:24]([O:23][CH2:22][C:13]1[N:14]([CH2:15][CH2:16][CH2:17][O:18][CH:19]([CH3:21])[CH3:20])[C:6]2[C:5]3[CH:4]=[CH:3][C:2](/[CH:29]=[CH:28]/[CH2:27][CH2:26][N:30]4[C:38](=[O:39])[C:37]5[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=5)[C:31]4=[O:40])=[CH:11][C:10]=3[N:9]=[CH:8][C:7]=2[N:12]=1)[CH3:25]

Komponenten

8

Edukt 4

HCID 10796Cesium carbonateHCID 11776TriphenylphosphineHCID 339432N-(3-Buten-1-yl)phthalimideHCID 673819647-Bromo-2-ethoxymethyl-1-(isopropoxypropyl)-1H-imidazo[4,5-c]quinoline

Produkt 1

HCID 690842002-{(3E)-4-[2-ethoxymethyl-1-(3-isopropoxypropyl)-1H-imidazo[4,5-c]quinolin-7-yl]but-3-enyl}-1H-isoindole-1,3(2H)-dioneAusbeute 77,1 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 167845palladium(II) acetateKatalysatorHCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
140 °C

Versuchsvorschrift

7-Bromo-2-ethoxymethyl-1-(3-isopropoxypropyl)-1H-imidazo[4,5-c]quinoline (1.9 g, 4.68 mmol), 2-but-3-enyl-1H-isoindole-1,3(2H)-dione (1.04 g, 5.15 mmol), cesium carbonate (3.05 g, 9.36 mmol), triphenylphosphine (0.246 g, 0.94 mmol), palladium(II) acetate (0.105 g, 0.47 mmol), and N,N-dimethylformamide (DMF) (28 mL) were added to a pressure tube. The vessel was sealed with a TEFLON cap and heated at 140° C. for 2.5 hours. The reaction was cooled to ambient temperature. The reaction was diluted with ethyl acetate and washed multiple times with water. The initial water wash was extracted with ethyl acetate. The organic fractions were combined and washed with water once again. The organic fractions were concentrated under reduced pressure and the residue was purified using a HORIZON HPFC system (silica cartridge, eluting with a linear gradient of 2-20% CMA in chloroform) to yield 1.9 g of 2-{(3E)-4-[2-ethoxymethyl-1-(3-isopropoxypropyl)-1H-imidazo[4,5-c]quinolin-7-yl]but-3-enyl}-1H-isoindole-1,3(2H)-dione as a pale yellow oil.

Aufarbeitung

  1. customcap
  2. temperatureThe reaction was cooled to ambient temperature
  3. washwashed multiple times with water
  4. washThe initial water wash
  5. extractionwas extracted with ethyl acetate
  6. washwashed with water once again
  7. concentrationThe organic fractions were concentrated under reduced pressure
  8. customthe residue was purified
  9. washeluting with a linear gradient of 2-20% CMA in chloroform)

Quellen und Nachweise

ORD-Eintrag
ord-ee3b73b30ec64502ba910176f53a7759
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08658666B2

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