3-(6,7-Dimethoxyquinazolin-4-yloxy)-2-fluoroaniline → 1-(3-tert-butyl-1-phenyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)-2-fluorophenyl)urea

HRID 871668Notes

Reaction equation

HRID 871668 reaction equation
[C:1]([C:5]1[CH:9]=[C:8]([NH:10][C:11](=[O:19])OC2C=CC=CC=2)[N:7]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[N:6]=1)([CH3:4])([CH3:3])[CH3:2].[CH3:26][O:27][C:28]1[CH:29]=[C:30]2[C:35](=[CH:36][C:37]=1[O:38][CH3:39])[N:34]=[CH:33][N:32]=[C:31]2[O:40][C:41]1[C:42]([F:48])=[C:43]([CH:45]=[CH:46][CH:47]=1)[NH2:44]>C1COCC1>[C:1]([C:5]1[CH:9]=[C:8]([NH:10][C:11]([NH:44][C:43]2[CH:45]=[CH:46][CH:47]=[C:41]([O:40][C:31]3[C:30]4[C:35](=[CH:36][C:37]([O:38][CH3:39])=[C:28]([O:27][CH3:26])[CH:29]=4)[N:34]=[CH:33][N:32]=3)[C:42]=2[F:48])=[O:19])[N:7]([C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)[N:6]=1)([CH3:3])([CH3:2])[CH3:4]

Participants

4

Reactant 2

HCID 178195183-(6,7-Dimethoxyquinazolin-4-yloxy)-2-fluoroanilineHCID 46196894phenyl 3-tert-butyl-1-phenyl-1H-pyrazol-5-ylcarbamate

Product 1

HCID 442432271-(3-tert-butyl-1-phenyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)-2-fluorophenyl)ureaYield 63.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of phenyl 3-tert-butyl-1-phenyl-1H-pyrazol-5-ylcarbamate (prepared as described in Example 153A) (239 mg, 0.71 mmol), 3-(6,7-dimethoxyquinazolin-4-yloxy)-2-fluoroaniline (prepared as described in Example 265A steps 1 through 3) (150 mg, 0.475 mmol) and N,N-4-(dimethylamino)pyridine (10 mg, 0.082 mmol) in THF (5 mL) was stirred at rt for 15 h. The reaction mixture was concentrated under reduced pressure to give the crude product. Purification via silica gel flash chromatography (eluting with a gradient of 20% ethyl acetate in hexanes to 100% ethyl acetate) afforded 1-(3-tert-butyl-1-phenyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-yloxy)-2-fluorophenyl)urea (167 mg, 63%) as a colorless solid. 1H NMR (300 MHz, DMSO-d6) δ 9.07 (brs, 1H), 8.85 (brs, 1H), 8.57 (s, 1H), 8.07 (m, 1H), 7.39-7.58 (m, 7H), 7.23 (m, 1H), 7.20 (m, 1H), 6.42 (s, 1H), 4.00 (s, 3H), 3.99 (s, 3H), 1.29 (s, 9H); LC-MS (ESI) m/z 557 (M+H)+.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customto give the crude product
  3. customPurification via silica gel flash chromatography (
  4. washeluting with a gradient of 20% ethyl acetate in hexanes to 100% ethyl acetate)

Sources & evidence

ORD record
ord-250cdf2bd5fe4844af70fc21fa95184a
Source dataset
uspto-grants-2015_03
Patent number
US08969587B2

Reaction notes

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