Ethyl Acetate → HCID 178438768, compound

HRID 2048599Notes

Reaction equation

HRID 2048599 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:41])[N:18]([C@H:28]3[CH2:33][CH2:32][C@H:31]([O:34][CH2:35]C(OCC)=O)[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][C:10]=1[O:42][CH3:43])#[N:2].[CH3:44][Mg]Br.C([O:50][CH2:51][CH3:52])(=O)C>O1CCCC1>[OH:50][C:51]([CH3:52])([CH3:44])[CH2:35][O:34][C@H:31]1[CH2:32][CH2:33][C@H:28]([N:18]2[C:17](=[O:41])[C:16]([CH2:15][C:12]3[CH:13]=[CH:14][C:9]([C:4]4[C:3]([C:1]#[N:2])=[CH:8][CH:7]=[CH:6][CH:5]=4)=[C:10]([O:42][CH3:43])[CH:11]=3)=[C:21]([CH2:22][CH2:23][CH3:24])[N:20]3[N:25]=[CH:26][CH:27]=[C:19]23)[CH2:29][CH2:30]1

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 178418573HCID 178418573, compoundHCID 178438769HCID 178438769, compound

Product 1

HCID 178438768HCID 178438768, compoundYield 68%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of ethyl [(trans-4-{6-[(2′-cyano-2-methoxybiphenyl-4-yl)methyl]-5-oxo-7-propylpyrazolo[1,5-a]pyrimidin-4(5H)-yl}cyclohexyl)oxy]acetate (0.13 g) in tetrahydrofuran (1.5 mL) was added dropwise methylmagnesium bromide (1 M tetrahydrofuran solution, 0.88 mL) at 0° C., and the mixture was stirred for 3 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 (0.085 g, 68%).

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-0197ffab0b204f1a804630709aa3c686
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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