Triethylamine → N-{2-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]phenyl}-N'-(3-methyl-5-isothiazolyl)urea

HRID 2416025Notes

Reaction equation

HRID 2416025 reaction equation
[Cl:1][C:2]1[CH:8]=[C:7]([O:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:22][CH3:23])=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:6]=[CH:5][C:3]=1[NH2:4].C(N(CC)CC)C.ClC(Cl)(O[C:35](=[O:41])OC(Cl)(Cl)Cl)Cl.Cl.[NH2:44][C:45]1[S:49][N:48]=[C:47]([CH3:50])[CH:46]=1>C(Cl)(Cl)Cl.O>[Cl:1][C:2]1[CH:8]=[C:7]([O:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:22][CH3:23])=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:6]=[CH:5][C:3]=1[NH:4][C:35]([NH:44][C:45]1[S:49][N:48]=[C:47]([CH3:50])[CH:46]=1)=[O:41]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 94429TriphosgeneHCID 27239183-Methylisothiazol-5-ylamine hydrochlorideHCID 218898992-Chloro-4-((6,7-dimethoxyquinazolin-4-yl)oxy)aniline

Product 1

HCID 22637132N-{2-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]phenyl}-N'-(3-methyl-5-isothiazolyl)ureaYield 43.1%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6212ChloroformSolvent2×

Procedure

2-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-aniline (43 mg) was dissolved in chloroform (1.2 ml) and triethylamine (0.2 ml) to prepare a solution. A solution of triphosgene (20 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 5 min. Next, 5-amino-3-methylisothiazole hydrochloride (22 mg) was added thereto, and the mixture was further stirred at room temperature overnight. Water was added to the reaction solution, and the mixture was subjected to separatory extraction with chloroform. The organic layer was concentrated, and the residue was then purified by chromatography (chloroform:acetone=2:1) to give the title compound (13.7 mg, yield 22%).

Workup

  1. stirringthe mixture was further stirred at room temperature overnight
  2. extractionthe mixture was subjected to separatory extraction with chloroform
  3. concentrationThe organic layer was concentrated
  4. customthe residue was then purified by chromatography (chloroform:acetone=2:1)

Sources & evidence

ORD record
ord-8a2977e52271489da5414f56d76f65f0
Source dataset
uspto-grants-2004_11
Patent number
US06821987B2

Reaction notes

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