Acetyl chloride → N-[6-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridin-3-yl]-acetamide

HRID 332408Notes

Reaction equation

[CH3:1][C:2]1[O:6][N:5]=[C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[C:3]=1[CH2:13][O:14][C:15]1[N:20]=[CH:19][C:18]([NH2:21])=[CH:17][CH:16]=1.C(N(CC)CC)C.[C:29](Cl)(=[O:31])[CH3:30]>C1COCC1>[CH3:1][C:2]1[O:6][N:5]=[C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[C:3]=1[CH2:13][O:14][C:15]1[N:20]=[CH:19][C:18]([NH:21][C:29](=[O:31])[CH3:30])=[CH:17][CH:16]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridin-3-ylamine (150 mg, 0.53 mmol) in THF (4 mL) was added triethylamine (65 mg, 90 μL, 0.64 mmol) and the resulting mixture cooled to 0° C. with ice. Then a solution of acetyl chloride (50 mg, 50 μL) in THF (1 mL) was added and the resulting mixture allowed to warm up to room temperature over 1 h. The mixture was then filtered and the filtrate evaporated before being diluted with methanol and potassium carbonate (10 mg) added. After one hour at room temperature the mixture was extracted with dichloromethane. The combined organic layers were then washed with water and then dried over sodium sulfate, filtered and evaporated to afford the title compound (145 mg, 84%) which was obtained as white crystals. MS: m/e=324.0 [M+H]+.

Workup

temperatureto warm up to room temperature over 1 h
filtrationThe mixture was then filtered
customthe filtrate evaporated
additionbefore being diluted with methanol and potassium carbonate (10 mg)
additionadded
extractionAfter one hour at room temperature the mixture was extracted with dichloromethane
washThe combined organic layers were then washed with water
dry with materialdried over sodium sulfate
filtrationfiltered
customevaporated

Sources & evidence

ORD record: ord-612148fd41aa43d684596ce6f2537a7b
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08877783B2

Reaction notes

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