Water → 1-Ethyl-3-{4-[(3-methyl-3H-imidazo[4,5-b]pyridin-2-yl)oxy]phenyl}-1H-pyrazolo[3,4-b]pyrazine

HRID 573315Notes

Reaction equation

[CH2:1]([N:3]1[C:7]2=[N:8][CH:9]=[CH:10][N:11]=[C:6]2[C:5]([C:12]2[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][CH:13]=2)=[N:4]1)[CH3:2].[CH3:19][N:20]1[C:24]2=[N:25][CH:26]=[CH:27][CH:28]=[C:23]2[N:22]=[C:21]1S(C)(=O)=O.[H-].[Na+].O>CN(C=O)C>[CH2:1]([N:3]1[C:7]2=[N:8][CH:9]=[CH:10][N:11]=[C:6]2[C:5]([C:12]2[CH:17]=[CH:16][C:15]([O:18][C:21]3[N:20]([CH3:19])[C:24]4=[N:25][CH:26]=[CH:27][CH:28]=[C:23]4[N:22]=3)=[CH:14][CH:13]=2)=[N:4]1)[CH3:2]

Participants

Conditions

Temperature: 150 °C

Procedure

To a solution of 4-(1-ethyl-1H-pyrazolo[3,4-b]pyrazin-3-yl)phenol (100 mg) and 3-methyl-2-(methylsulfonyl)-3H-imidazo[4,5-b]pyridine (88 mg) in DMF (3 mL) was added NaH (60% in oil, 17 mg) at room temperature, and the mixture was heated at 150° C. for 1.5 h under microwave irradiation. The mixture was poured into water and extracted with AcOEt. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (AcOEt/hexane) and recrystallized from AcOEt/hexane to give the title compound (98 mg).

Workup

extractionextracted with AcOEt
dry with materialThe organic layer was dried over Na2SO4
filtrationfiltered
concentrationconcentrated under reduced pressure
customThe residue was purified by basic silica gel column chromatography (AcOEt/hexane)
customrecrystallized from AcOEt/hexane

Sources & evidence

ORD record: ord-f361fe5f34ae4441b3824e4f26c64e6b
Source dataset: uspto-grants-2015_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09029536B2

Reaction notes

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