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

HRID 1918068Notes

Reaction equation

HRID 1918068 reaction equation
[F:1][C:2]([C:5]1[CH:9]=[C:8]([NH:10][C:11](=[O:20])OC2C=CC(Cl)=CC=2)[O:7][N:6]=1)([CH3:4])[CH3:3].[CH3:21][O:22][C:23]1[CH:24]=[C:25]2[C:30](=[CH:31][C:32]=1[O:33][CH3:34])[N:29]=[CH:28][N:27]=[C:26]2[O:35][C:36]1[CH:37]=[C:38]([CH:40]=[CH:41][C:42]=1[F:43])[NH2:39]>C1COCC1>[CH3:21][O:22][C:23]1[CH:24]=[C:25]2[C:30](=[CH:31][C:32]=1[O:33][CH3:34])[N:29]=[CH:28][N:27]=[C:26]2[O:35][C:36]1[CH:37]=[C:38]([NH:39][C:11]([NH:10][C:8]2[O:7][N:6]=[C:5]([C:2]([F:1])([CH3:3])[CH3:4])[CH:9]=2)=[O:20])[CH:40]=[CH:41][C:42]=1[F:43]

Participants

4

Reactant 2

HCID 668768273-(6,7-Dimethoxyquinazolin-4-yloxy)-4-fluoroanilineHCID 668775214-Chlorophenyl 3-(2-fluoropropan-2-yl)isoxazol-5-ylcarbamate

Product 1

HCID 582678951-(3-(6,7-Dimethoxyquinazolin-4-yloxy)-4-fluorophenyl)-3-(3-(2-fluoropropan-2-yl)isoxazol-5-yl)ureaYield 64%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 4-chlorophenyl 3-(2-fluoropropan-2-yl)isoxazol-5-ylcarbamate (prepared as described in Example 257A) (170 mg, 0.571 mmol), 3-(6,7-dimethoxyquinazolin-4-yloxy)-4-fluoroaniline (prepared as described in Example 266A steps 1 and 2) (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-(6,7-dimethoxyquinazolin-4-yloxy)-4-fluorophenyl)-3-(3-(2-fluoropropan-2-yl)isoxazol-5-yl)urea (147 mg, 64%) as a colorless solid. 1H NMR (300 MHz, DMSO-d6) δ 10.44 (brs, 1H), 9.08 (brs, 1H), 8.58 (s, 1H), 7.69 (m, 1H), 7.59 (s, 1H), 7.35-7.42 (m, 3H), 6.14 (s, 1H), 4.00 (s, 6H), 1.67 (d, J=21 Hz, 6H); LC-MS (ESI) m/z 486 (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-fdd84a6f39134f5daa405c60742b3c58
Source dataset
uspto-grants-2013_12
Patent number
US08618289B2

Reaction notes

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