Ethyl Acetate → HCID 178438630, compound

HRID 1688779Notes

Reaction equation

HRID 1688779 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[CH:14]=[CH:13][C:12]([CH2:15][C:16]2[C:17](=[O:42])[N:18]([C@H:28]3[CH2:33][CH2:32][C@H:31]([O:34][CH2:35][C:36](N(OC)C)=[O:37])[CH2:30][CH2:29]3)[C:19]3[N:20]([N:25]=[CH:26][CH:27]=3)[C:21]=2[CH2:22][CH2:23][CH3:24])=[CH:11][CH:10]=1)#[N:2].[CH3:43][Mg]Br.C(OCC)(=O)C>O1CCCC1>[O:42]=[C:17]1[C:16]([CH2:15][C:12]2[CH:11]=[CH:10][C:9]([C:4]3[C:3]([C:1]#[N:2])=[CH:8][CH:7]=[CH:6][CH:5]=3)=[CH:14][CH:13]=2)=[C:21]([CH2:22][CH2:23][CH3:24])[N:20]2[N:25]=[CH:26][CH:27]=[C:19]2[N:18]1[C@H:28]1[CH2:33][CH2:32][C@H:31]([O:34][CH2:35][C:36](=[O:37])[CH3:43])[CH2:30][CH2:29]1

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 178418573HCID 178418573, compoundHCID 178438670HCID 178438670, compound

Product 1

HCID 178438630HCID 178438630, compoundYield 94%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 2-[(trans-4-{6-[(2′-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propylpyrazolo[1,5-a]pyrimidin-4(5H)-yl}cyclohexyl)oxy]-N-methoxy-N-methylacetamide (1.3 g) in tetrahydrofuran (10 mL) was added dropwise methylmagnesium bromide (1 M tetrahydrofuran solution, 1.3 mL) at 0° C., and the mixture was stirred for 2 hr. To the reaction mixture were added ethyl acetate and then saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (1.12 g, 94%).

Workup

  1. extractionsaturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-7d6cbe10b70443d590771454a9bc2b1d
Source dataset
uspto-grants-2012_04
Patent number
US08148383B2

Reaction notes

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