(6-(3,5-dimethylisoxazol-4-yl)-2-ethoxy-1H-benzo[d]imidazol-4-yl)(pyridin 2-yl)methanone → HCID 117600947, compound

HRID 1773735Notes

Reaction equation

[CH3:1][C:2]1[C:6]([C:7]2[CH:8]=[C:9]([C:19]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][N:22]=3)=[O:20])[C:10]3[N:14]=[C:13]([O:15]CC)[NH:12][C:11]=3[CH:18]=2)=[C:5]([CH3:27])[O:4][N:3]=1.[CH:28]([Mg]Br)([CH3:30])[CH3:29]>C1COCC1>[CH3:1][C:2]1[C:6]([C:7]2[CH:8]=[C:9]([C:19]([OH:20])([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][N:22]=3)[CH:28]([CH3:30])[CH3:29])[C:10]3[NH:14][C:13](=[O:15])[NH:12][C:11]=3[CH:18]=2)=[C:5]([CH3:27])[O:4][N:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

(6-(3,5-dimethylisoxazol-4-yl)-2-ethoxy-1H-benzo[d]imidazol-4-yl)(pyridin-2-yl)methanone (50 mg, 0.14 mmol) was dissolved in dry THF (1.4 mL) and cooled to 0° C. Isopropylmagnesium bromide (2.0 M, 0.14 mL, 0.28 mmol) was added dropwise and the reaction was allowed to stir for 10 mins and then quenched with water. Reaction was extracted three times with EtOAc and combined organic layers were washed once with water and concentrated. Residue was taken up in EtOH (1.5 mL) and 4.0M HCl/dioxane (0.75 mL), heated to 65° C. for two hours, concentrated, then purified by reverse-phase HPLC to afford the desired product as a white powder.

Workup

customquenched with water
customReaction
extractionwas extracted three times with EtOAc
washwere washed once with water
concentrationconcentrated
temperature4.0M HCl/dioxane (0.75 mL), heated to 65° C. for two hours
concentrationconcentrated
custompurified by reverse-phase HPLC

Sources & evidence

ORD record: ord-280e3e320223413bb831d472dde9bdff
Source dataset: uspto-grants-2016_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09255089B2

Reaction notes

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