Water → [1-ethyl-3-(4-hydroxyphenyl)-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-7-yl]methyl acetate

HRID 1044318Notes

Reaction equation

[C:1]([O:4][CH2:5][C:6]1[CH:11]=[CH:10][N:9]=[C:8]2[N:12]([C:18]3[CH:23]=[CH:22][C:21]([O:24][Si](C(C)C)(C(C)C)C(C)C)=[CH:20][CH:19]=3)[C:13](=[O:17])[N:14]([CH2:15][CH3:16])[C:7]=12)(=[O:3])[CH3:2].[F-].C([N+](CCCC)(CCCC)CCCC)CCC.O>C1COCC1>[C:1]([O:4][CH2:5][C:6]1[CH:11]=[CH:10][N:9]=[C:8]2[N:12]([C:18]3[CH:19]=[CH:20][C:21]([OH:24])=[CH:22][CH:23]=3)[C:13](=[O:17])[N:14]([CH2:15][CH3:16])[C:7]=12)(=[O:3])[CH3:2]

Participants

Conditions

Temperature: 0 °C

Procedure

To a stirred solution of [1-ethyl-2-oxo-3-(4-{[tris(1-methylethyl)silyl]oxy}phenyl)-2,3-dihydro-1H-imidazo[4,5-b]pyridin-7-yl]methyl acetate (480 mg) in THF (5 mL) was added a solution of tetrabutylammonium fluoride (778 mg) in THF (2 mL) at 0° C. The mixture was stirred at 0° C. for 30 min, treated with water, and extracted with AcOEt. The organic layer was dried over MgSO4 and concentrated in vacuo. The residue was purified by silica gel column chromatography (AcOEt/Hexane=1/1) to give the title compound (276 mg).

Workup

extractionextracted with AcOEt
dry with materialThe organic layer was dried over MgSO4
concentrationconcentrated in vacuo
customThe residue was purified by silica gel column chromatography (AcOEt/Hexane=1/1)

Sources & evidence

ORD record: ord-a31400e0da2e481d92c13a0658944d82
Source dataset: uspto-grants-2013_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08563575B2

Reaction notes

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