Diisopropylethylamine → 1-(5-(6,7-Dimethoxyquinazolin-4-yloxy)-2,4-difluorophenyl)-3-(3-(2-fluoropropan-2-yl)isoxazol-5-yl)urea

HRID 631596Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 631596
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][N:7]=[C:6]2[O:15][C:16]1[C:17]([F:24])=[CH:18][C:19]([F:23])=[C:20]([CH:22]=1)[NH2:21].[F:25][C:26]([C:29]1[CH:33]=[C:32]([NH:34][C:35](=O)[O:36]C2C=CC=CC=2)[O:31][N:30]=1)([CH3:28])[CH3:27].C(N(C(C)C)CC)(C)C>CN(C=O)C.CN(C)C1C=CN=CC=1>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][N:7]=[C:6]2[O:15][C:16]1[C:17]([F:24])=[CH:18][C:19]([F:23])=[C:20]([NH:21][C:35]([NH:34][C:32]2[O:31][N:30]=[C:29]([C:26]([F:25])([CH3:27])[CH3:28])[CH:33]=2)=[O:36])[CH:22]=1

Komponenten

6

Edukt 3

HCID 81531DiisopropylethylamineHCID 66876626Phenyl 3-(2-fluoropropan-2-yl)isoxazol-5-ylcarbamateHCID 668767545-(6,7-Dimethoxyquinazolin-4-yloxy)-2,4-difluoroaniline

Produkt 1

HCID 442430461-(5-(6,7-Dimethoxyquinazolin-4-yloxy)-2,4-difluorophenyl)-3-(3-(2-fluoropropan-2-yl)isoxazol-5-yl)ureaAusbeute 31 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a stirred solution of 5-(6,7-dimethoxyquinazolin-4-yloxy)-2,4-difluoroaniline (100 mg, 0.3 mmoles) from the previous step and phenyl 3-(2-fluoropropan-2-yl)isoxazol-5-ylcarbamate described in Example 42A (96 mg, 0.32 mmoles) in anhydrous DMF (10 mL), was added 4-(dimethylamino)pyridine (20 mg, 0.16 mmoles) and diisopropylethylamine (80 μL, 0.45 mmoles) and the reaction heated to 70 C overnight. The reaction was then concentrated to an oil and purified by silica gel chromatography eluting with a gradient of ethyl acetate/dichloromethane, 3-80%, to afford 1-(5-(6,7-dimethoxyquinazolin-4-yloxy)-2,4-difluorophenyl)-3-(3-(2-fluoropropan-2-yl)isoxazol-5-yl)urea (46.33 mg, 31% yield) as a white solid. 1H (300 MHz, DMSO-d6) δ 10.58 (s, 1H), 8.92 (s, 1H), 8.57 (s, 1H), 8.13 (m, 1H), 7.67 (m, 1H), 7.57 (s, 1H), 7.41 (s, 1H), 6.12 (s, 1H), 3.98 (s, 6H), 1.65 (d, J=21 Hz, 6H); LCMS (ESI) m/z (M+H)+ 504.

Aufarbeitung

  1. temperaturethe reaction heated to 70 C overnight
  2. concentrationThe reaction was then concentrated to an oil
  3. custompurified by silica gel chromatography
  4. washeluting with a gradient of ethyl acetate/dichloromethane, 3-80%

Quellen und Nachweise

ORD-Eintrag
ord-807e48c7d2ec4aa789d3cddf6b2b2df1
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09320739B2

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