3-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline → 1-[5-(1,3-Difluoro-2-methylpropan-2-yl)isoxazol-3-yl]-3-[3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl]urea

HRID 1917922Notes

Reaction equation

HRID 1917922 reaction equation
[F:1][CH2:2][C:3]([C:7]1[O:11][N:10]=[C:9]([NH:12][C:13](=[O:21])OC2C=CC=CC=2)[CH:8]=1)([CH3:6])[CH2:4][F:5].[CH3:22][O:23][C:24]1[CH:25]=[C:26]2[C:31](=[CH:32][C:33]=1[O:34][CH3:35])[N:30]=[CH:29][N:28]=[C:27]2[O:36][C:37]1[CH:38]=[C:39]([CH:41]=[CH:42][CH:43]=1)[NH2:40]>CN(C)C1C=CN=CC=1.C1COCC1>[F:5][CH2:4][C:3]([C:7]1[O:11][N:10]=[C:9]([NH:12][C:13]([NH:40][C:39]2[CH:41]=[CH:42][CH:43]=[C:37]([O:36][C:27]3[C:26]4[C:31](=[CH:32][C:33]([O:34][CH3:35])=[C:24]([O:23][CH3:22])[CH:25]=4)[N:30]=[CH:29][N:28]=3)[CH:38]=2)=[O:21])[CH:8]=1)([CH3:6])[CH2:2][F:1]

Participants

5

Reactant 2

HCID 498410023-[(6,7-Dimethoxy-4-quinazolinyl)oxy]anilineHCID 66876148Phenyl 5-(1,3-difluoro-2-methylpropan-2-yl)isoxazol-3-ylcarbamate

Product 1

HCID 569541191-[5-(1,3-Difluoro-2-methylpropan-2-yl)isoxazol-3-yl]-3-[3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl]ureaYield 31%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of phenyl 5-(1,3-difluoro-2-methylpropan-2-yl)isoxazol-3-ylcarbamate from the previous step (0.089 g, 0.3 mmol), 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline from Example 113A (0.089 g, 0.3 mmol), and 4-(dimethylamino)pyridine (0.03 g) in THF (6 mL) was stirred at room temperature overnight. The reaction was quenched with water and extracted with CH2Cl2. Extracts were dried over MgSO4 and concentrated under reduced pressure. The crude product was purified by silica gel chromatography (eluting with 70-95% EtOAc/hexane) to afford 1-[5-(1,3-difluoro-2-methylpropan-2-yl)isoxazol-3-yl]-3-[3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl]urea as solid (0.055 g, 31%). 1H NMR (300 MHz, DMSO-d6) δ 9.70 (s, 1H), 9.02 (s, 1H), 8.57 (s, 1H), 7.57 (m, 2H), 7.40 (m, 2H), 7.27 (d, 1H), 6.98 (d, 1H), 6.77 (s, 1H), 4.71 (s, 2H), 4.56 (s, 2H), 4.00 (s, 3H), 3.98 (s, 3H), 1.28 (s, 3H); LC-MS (ESI) m/z 500 (M+H)+.

Workup

  1. customThe reaction was quenched with water
  2. extractionextracted with CH2Cl2
  3. dry with materialExtracts were dried over MgSO4
  4. concentrationconcentrated under reduced pressure
  5. customThe crude product was purified by silica gel chromatography (eluting with 70-95% EtOAc/hexane)

Sources & evidence

ORD record
ord-0338ef4b0c3a4174ac23ac703346fd9a
Source dataset
uspto-grants-2013_12
Patent number
US08618289B2

Reaction notes

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