2-(2,4-Dichloro-6-morpholin-4-yl-pyrimidin-5-yloxy)-N-methoxy-N-ethyl-acetamide → 1-(2,4-Dichloro-6-morpholin-4-yl-pyrimidin-5-yloxy)-propan-2-one
Reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([Cl:8])[C:5]([O:9][CH2:10][C:11](N(OC)CC)=[O:12])=[C:4]([N:18]2[CH2:23][CH2:22][O:21][CH2:20][CH2:19]2)[N:3]=1.[CH3:24][Mg]Br>C1COCC1>[Cl:1][C:2]1[N:7]=[C:6]([Cl:8])[C:5]([O:9][CH2:10][C:11](=[O:12])[CH3:24])=[C:4]([N:18]2[CH2:23][CH2:22][O:21][CH2:20][CH2:19]2)[N:3]=1Participants
4
Procedure
To a solution of 2-(2,4-dichloro-6-morpholin-4-yl-pyrimidin-5-yloxy)-N-methoxy-N-ethyl-acetamide (200 mg, 0.60 mmol) in THF (4 mL) at −78° C. was added methylmagnesium bromide (1.28 mL, 1.79 mmol, 1.4 M solution in THF/toluene) and the resulting mixture warmed to RT and stirred for 3 hours. The resulting mixture was quenched with 1M HCl and extracted with ethyl acetate. The combined organic extracts were washed with brine, then dried (Na2SO4) and concentrated in vacuo affording 1-(2,4-Dichloro-6-morpholin-4-yl-pyrimidin-5-yloxy)-propan-2-one as a white solid (146 mg, 80%). LCMS: RT=2.90 min, [M+H]+=306/308/310.
Workup
- customThe resulting mixture was quenched with 1M HCl
- extractionextracted with ethyl acetate
- washThe combined organic extracts were washed with brine
- dry with materialdried (Na2SO4)
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-13cf7600191b460b95ed5afb0fdc26c2
- Source dataset
- uspto-grants-2016_05
- Patent number
- US09346817B2
Reaction notes
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