Sodium hydride → 6-chloro-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 587569Notes

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

Participants

Conditions

Temperature: 180 °C

Procedure

3-Methyl-2-(methylsulfonyl)-3H-imidazo[4,5-b]pyridine (100 mg) was added to a solution of 6-chloro-3-(4-hydroxyphenyl)-1-(1-methylethyl)-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (148 mg) and NaH (20.83 mg) in DMF (3 mL) at room temperature. The mixture was heated at 180° C. for 30 min under microwave irradiation. The reaction mixture was diluted with MeOH and concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with 0%-50% EtOAc in hexane) to give 6-chloro-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 (120 mg) as white crystals.

Workup

concentrationconcentrated in vacuo
customThe residue was purified by column chromatography (silica gel, eluted with 0%-50% EtOAc in hexane)

Sources & evidence

ORD record: ord-f4cfd465d0114c7088b5d5b0145e3249
Source dataset: uspto-grants-2016_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09226921B2

Reaction notes

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