Ethyl Acetate → HCID 178438629, compound

HRID 1688783Notes

Reaction equation

HRID 1688783 reaction equation
[O:1]=[C:2]1[C:7]([CH2:8][C:9]2[CH:14]=[CH:13][C:12]([C:15]3[C:16]([C:21]#[N:22])=[CH:17][CH:18]=[CH:19][CH:20]=3)=[CH:11][CH:10]=2)=[C:6]([CH2:23][CH2:24][CH3:25])[N:5]2[N:26]=[CH:27][CH:28]=[C:4]2[N:3]1[C@H:29]1[CH2:34][CH2:33][C@H:32]([O:35][CH2:36][C:37](=[O:39])[CH3:38])[CH2:31][CH2:30]1.[CH:40]1([Mg]Br)[CH2:42][CH2:41]1.C(OCC)(=O)C>O1CCCC1>[CH:40]1([C:37]([OH:39])([CH3:38])[CH2:36][O:35][C@H:32]2[CH2:31][CH2:30][C@H:29]([N:3]3[C:2](=[O:1])[C:7]([CH2:8][C:9]4[CH:14]=[CH:13][C:12]([C:15]5[C:16]([C:21]#[N:22])=[CH:17][CH:18]=[CH:19][CH:20]=5)=[CH:11][CH:10]=4)=[C:6]([CH2:23][CH2:24][CH3:25])[N:5]4[N:26]=[CH:27][CH:28]=[C:4]34)[CH2:34][CH2:33]2)[CH2:42][CH2:41]1

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 178418630HCID 178418630, compoundHCID 178438630HCID 178438630, compound

Product 1

HCID 178438629HCID 178438629, compoundYield 68%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 4′-({5-oxo-4-[trans-4-(2-oxopropoxy)cyclohexyl]-7-propyl-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (0.30 g) in tetrahydrofuran (3 mL) was added dropwise cyclopropylmagnesium bromide (0.5M tetrahydrofuran solution, 2.3 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 (0.22 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-059f39b39ed141ddace697f7efbef514
Source dataset
uspto-grants-2012_04
Patent number
US08148383B2

Reaction notes

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