Water → 6-methyl-1-(1-methylethyl)-3-{4-[(3-methyl-3H-imidazo[4,5-b]pyridin-2-yl)oxy]phenyl}-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

HRID 1044261Notes

Reaction equation

[CH3:1][N:2]1[C:6]2=[N:7][CH:8]=[CH:9][CH:10]=[C:5]2[N:4]=[C:3]1S(C)(=O)=O.[OH:15][C:16]1[CH:21]=[CH:20][C:19]([N:22]2[C:26]3=[N:27][CH:28]=[C:29]([CH3:31])[CH:30]=[C:25]3[N:24]([CH:32]([CH3:34])[CH3:33])[C:23]2=[O:35])=[CH:18][CH:17]=1.[H-].[Na+].O>CN(C=O)C>[CH3:31][C:29]1[CH:30]=[C:25]2[N:24]([CH:32]([CH3:33])[CH3:34])[C:23](=[O:35])[N:22]([C:19]3[CH:18]=[CH:17][C:16]([O:15][C:3]4[N:2]([CH3:1])[C:6]5=[N:7][CH:8]=[CH:9][CH:10]=[C:5]5[N:4]=4)=[CH:21][CH:20]=3)[C:26]2=[N:27][CH:28]=1

Participants

Conditions

Temperature: 100 °C

Procedure

To a mixture of 3-methyl-2-(methylsulfonyl)-3H-imidazo[4,5-b]pyridine (198 mg) and 3-(4-hydroxyphenyl)-6-methyl-1-(1-methylethyl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (177 mg) in DMF (1.5 mL) was added NaH (40.0 mg), and the mixture was stirred at 100° C. for 1 h. The mixture was heated at 180° C. for 30 min under microwave irradiation. The mixture was poured into water, and the mixture was extracted with EtOAc. The organic layer was separated, washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by column chromatography (silica gel, EtOAc/hexane) to give the title compound (125 mg) as white crystals.

Workup

temperatureThe mixture was heated at 180° C. for 30 min under microwave irradiation
extractionthe mixture was extracted with EtOAc
customThe organic layer was separated
washwashed with brine
dry with materialdried over Na2SO4
concentrationconcentrated in vacuo
customThe residue was purified by column chromatography (silica gel, EtOAc/hexane)

Sources & evidence

ORD record: ord-d0dc6061bc7d4d58832384fb1774178f
Source dataset: uspto-grants-2013_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08563575B2

Reaction notes

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