Potassium Carbonate → HCID 21186978, compound

HRID 279616Notes

Reaction equation

HRID 279616 reaction equation
S(Cl)(Cl)=O.[OH:5][CH2:6][CH2:7][CH2:8][N:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]1=[O:15].[Cl:16][C:17]1[CH:36]=[CH:35][C:20]([NH:21][C:22]2[C:31]3[C:26](=[CH:27][C:28](O)=[C:29]([O:32][CH3:33])[CH:30]=3)[N:25]=[CH:24][N:23]=2)=[C:19]([F:37])[CH:18]=1.C(=O)([O-])[O-].[K+].[K+]>ClC(Cl)Cl.CN1C(=O)CCC1.O>[Cl:16][C:17]1[CH:36]=[CH:35][C:20]([NH:21][C:22]2[C:31]3[C:26](=[CH:27][C:28]([O:5][CH2:6][CH2:7][CH2:8][N:9]4[CH:14]=[CH:13][CH:12]=[CH:11][C:10]4=[O:15])=[C:29]([O:32][CH3:33])[CH:30]=3)[N:25]=[CH:24][N:23]=2)=[C:19]([F:37])[CH:18]=1

Participants

8

Reactant 4

HCID 11430Potassium CarbonateHCID 24386Thionyl ChlorideHCID 2351098825514-24-3HCID 1355137204-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazoline

Product 1

HCID 21186978HCID 21186978, compoundYield 50%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6212ChloroformSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
5 °C

Procedure

Thionyl chloride (0.55 ml, 7.5 mmol) was added to a solution of 1-(3-hydroxypropyl)-1,2dihyro-2-pyridone (770 mg, 5 mmol) in trichloromethane (15 ml) at 5° C. The mixture was stirred at 5° C. for 1 hour and then at ambient temperature for 2 hours. The volatiles were removed by evaporation, the residue azeotroped with toluene and dried under vacuum to give crude 1-(3-chloropropyl)-1,2-dihydro-2-pyridone (500 mg) which was used directly. Part of this product (206 mg, 1.2 mmol) was then added to a mixture of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (350 mg, 1.0 mmol), (prepared as described for the starting material in Example 24), and potassium carbonate (303 mg, 2.2 mmol) in NMP (20 ml) and the reaction mixture was heated at 90° C. for 2 hours. The mixture was allowed to cool, diluted with water and extracted with ethyl acetate. The combined extracts were washed with water, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by column chromatography eluting with methylene chloride/methanol mixtures (100/0 increasing to 95/5) to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(3-(2-oxo-1,2-dihydro-1-pyridyl)propoxy)quinazoline (194 mg, 50%).

Workup

  1. waitat ambient temperature for 2 hours
  2. customThe volatiles were removed by evaporation
  3. customthe residue azeotroped with toluene
  4. customdried under vacuum
  5. customto give crude 1-(3-chloropropyl)-1,2-dihydro-2-pyridone (500 mg) which
  6. custom(prepared
  7. temperaturethe reaction mixture was heated at 90° C. for 2 hours
  8. temperatureto cool
  9. extractionextracted with ethyl acetate
  10. washThe combined extracts were washed with water
  11. dry with materialdried (MgSO4)
  12. customthe solvent removed by evaporation
  13. customThe residue was purified by column chromatography
  14. washeluting with methylene chloride/methanol mixtures (100/0 increasing to 95/5)

Sources & evidence

ORD record
ord-2895b19d9879476599f71e9d6d83c889
Source dataset
uspto-grants-2002_03
Patent number
US06362336B1

Reaction notes

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