Hydrochloric Acid → N-(1-methyl-1H-pyrazol-3-yl)-6-[(5-{[(2R)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]oxy}pyridin-2-yl)oxy] quinazoline-4-amine

HRID 81640

Reaction equation

HRID 81640 reaction equation
CS([O:5][CH2:6][C@@H:7]([O:9][CH:10]1[CH2:15][CH2:14][CH2:13][CH2:12][O:11]1)[CH3:8])(=O)=O.CC(C)([O-])C.[K+].[CH3:22][N:23]1[CH:27]=[CH:26][C:25]([NH:28][C:29]2[C:38]3[C:33](=[CH:34][CH:35]=[C:36]([O:39][C:40]4[N:45]=[CH:44][C:43](O)=[CH:42][CH:41]=4)[CH:37]=3)[N:32]=[CH:31][N:30]=2)=[N:24]1.Cl>O.CS(C)=O>[CH3:22][N:23]1[CH:27]=[CH:26][C:25]([NH:28][C:29]2[C:38]3[C:33](=[CH:34][CH:35]=[C:36]([O:39][C:40]4[CH:41]=[CH:42][C:43]([O:5][CH2:6][C@H:7]([O:9][CH:10]5[CH2:15][CH2:14][CH2:13][CH2:12][O:11]5)[CH3:8])=[CH:44][N:45]=4)[CH:37]=3)[N:32]=[CH:31][N:30]=2)=[N:24]1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 23665647Potassium tert-butoxideHCID 59627439(2S)-2-(tetrahydro-2H-pyran-2-yloxy)propyl methanesulfonateHCID 684298776-({4-[(1-methyl-1H-pyrazol-3-yl)amino]quinazolin-6-yl}oxy)pyridin-3-ol

Product 1

HCID 68429798N-(1-methyl-1H-pyrazol-3-yl)-6-[(5-{[(2R)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]oxy}pyridin-2-yl)oxy] quinazoline-4-amineYield 75.1%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

(2S)-2-(tetrahydro-2H-pyran-2-yloxy)propyl methanesulfonate (214 mg, 0.90 mmol) and potassium tert-butoxide (200 mg, 1.8 mmol) were added to a dimethyl sulfoxide solution (5 ml) of 6-({4-[(1-methyl-1H-pyrazol-3-yl)amino]quinazolin-6-yl}oxy)pyridin-3-ol (300 mg, 0.90 mmol) obtained in Example 6-3), and the reaction solution was stirred for 24 hours at 100° C. The reaction solution was cooled to room temperature, then water and aqueous 1 N hydrochloric acid solution (0.9 ml, 0.9 mmol) were added, and extracted with ethyl acetate. The organic layer was washed with saturated saline water, then dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (chloroform:methanol=99:1) to obtain N-(1-methyl-1H-pyrazol-3-yl)-6-[(5-{[(2R)-2-(tetrahydro-2H-pyran-2-yloxy)propyl]oxy}pyridin-2-yl)oxy]quinazoline-4-amine (322 mg, yield: 75%) as a pale brown solid.

Workup

  1. temperatureThe reaction solution was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated saline water
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (chloroform:methanol=99:1)

Sources & evidence

ORD record
ord-6d0e222a3d8c4c1f98d625954a2e9752
Source dataset
uspto-grants-2014_09
Patent number
US08846700B2

Linked notes

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