Water → 6,7-Dimethoxy-4-(7-pyridin-2-yl-isoquinolin-6-yloxy)-quinoline

HRID 228884Notes

Reaction equation

[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[C:7]1[CH:16]=[C:15]2[C:10]([CH:11]=[CH:12][N:13]=[CH:14]2)=[CH:9][C:8]=1[OH:17].Cl[C:19]1[C:28]2[C:23](=[CH:24][C:25]([O:31][CH3:32])=[C:26]([O:29][CH3:30])[CH:27]=2)[N:22]=[CH:21][CH:20]=1.O>CN(C)C1C=CN=CC=1.ClC1C=CC=CC=1Cl>[CH3:30][O:29][C:26]1[CH:27]=[C:28]2[C:23](=[CH:24][C:25]=1[O:31][CH3:32])[N:22]=[CH:21][CH:20]=[C:19]2[O:17][C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][C:7]=1[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][N:1]=1)[CH:14]=[N:13][CH:12]=[CH:11]2

Participants

Conditions

Temperature: 140 °C

Procedure

7-Pyridin-2-yl-isoquinolin-6-ol (20 mg), 4-chloro-6,7-dimethoxyquinoline (50 mg), and 4-dimethylaminopyridine (33 mg) were suspended in o-dichlorobenzene (3 ml), and the mixture was stirred at 140° C. for 24 hr. The reaction solution was cooled to room temperature, water was then added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and saturated brine and was dried over anhydrous magnesium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using chloroform-methanol to give the title compound (8 mg, yield 22%).

Workup

temperatureThe reaction solution was cooled to room temperature
extractionthe mixture was extracted with ethyl acetate
washThe ethyl acetate layer was then washed with water and saturated brine
dry with materialwas dried over anhydrous magnesium sulfate
customThe solvent was removed by distillation under the reduced pressure
customthe residue was purified by thin layer chromatography

Sources & evidence

ORD record: ord-f8ad9da8487b4360b897c4cab370680a
Source dataset: uspto-grants-2009_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07560558B2

Reaction notes

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