3-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline → HCID 58267782, compound

HRID 871756Notes

Reaction equation

HRID 871756 reaction equation
[CH2:1]([C:3]1[CH:7]=[C:6]([NH:8][C:9](=O)[O:10]C2C=CC=CC=2)[N:5]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[N:4]=1)[CH3:2].[CH3:24][O:25][C:26]1[CH:27]=[C:28]2[C:33](=[CH:34][C:35]=1[O:36][CH3:37])[N:32]=[CH:31][N:30]=[C:29]2[O:38][C:39]1[CH:40]=[C:41]([CH:43]=[CH:44][CH:45]=1)[NH2:42]>CS(C)=O.C(OCC)(=O)C>[CH3:24][O:25][C:26]1[CH:27]=[C:28]2[C:33](=[CH:34][C:35]=1[O:36][CH3:37])[N:32]=[CH:31][N:30]=[C:29]2[O:38][C:39]1[CH:40]=[C:41]([NH:42][C:9]([NH:8][C:6]2[N:5]([C:18]3[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:4]=[C:3]([CH2:1][CH3:2])[CH:7]=2)=[O:10])[CH:43]=[CH:44][CH:45]=1

Participants

5

Reactant 2

HCID 498410023-[(6,7-Dimethoxy-4-quinazolinyl)oxy]anilineHCID 66877385phenyl 3-ethyl-1-phenyl-1H-pyrazol-5-ylcarbamate

Product 1

HCID 58267782HCID 58267782, compoundYield 32%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
70 °C

Procedure

A stirred mixture of phenyl 3-ethyl-1-phenyl-1H-pyrazol-5-ylcarbamate (0.15 g, 0.50 mmol) and 3-(6,7-dimethoxyquinazolin-4-yloxy)aniline (prepared as described in Example 113A) (0.15 g, 0.50 mmol) in DMSO (2 mL) was heated at 70° C. for 15 h. After cooling to rt, the reaction mixture was diluted with ethyl acetate (50 mL) and washed with water (2×20 mL). The organic layer was separated, dried over magnesium sulfate, and concentrated under reduced pressure to afford an oil. Purification via preparative silica gel thin-layer chromatography (eluting with a mixture of 8% methanol in dichloromethane containing 0.5% ammonia) followed by recrystallization from diethyl ether afforded 1-(3-(6,7-dimethoxyquinazolin-4-yloxy)phenyl)-3-(3-ethyl-1-phenyl-1H-pyrazol-5-yl)urea (80 mg, 32%) as a colorless solid. 1H NMR (400 MHz, DMSO-d6) δ 9.21 (s, 1H), 8.55 (s, 1H), 8.50 (s, 1H), 7.52-7.55 (m, 6H), 7.34-7.42 (m, 3H), 7.18 (m, 1H), 6.92 (m, 1H), 6.30 (s, 1H), 3.99 (s, 3H), 3.98 (s, 3H), 2.56 (m, 2H), 1.19 (m, 3H); LC-MS (ESI) m/z 511 (M+H)+.

Workup

  1. temperatureAfter cooling to rt
  2. washwashed with water (2×20 mL)
  3. customThe organic layer was separated
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customto afford an oil
  7. customPurification via preparative silica gel thin-layer chromatography (
  8. washeluting with a mixture of 8% methanol in dichloromethane containing 0.5% ammonia)
  9. customfollowed by recrystallization from diethyl ether

Sources & evidence

ORD record
ord-5b8375e24027476687b37c53c799f41e
Source dataset
uspto-grants-2015_03
Patent number
US08969587B2

Reaction notes

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