Ethyl Acetate → 4'-{[7-Butyl-4-(1,4-dioxaspiro[4.5]dec-8-yl)-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}-2'-fluorobiphenyl-2-carbonitrile

HRID 2062777Notes

Reaction equation

HRID 2062777 reaction equation
[O:1]1[C:5]2([CH2:10][CH2:9][CH:8]([NH:11][C:12]3[NH:16][N:15]=[CH:14][CH:13]=3)[CH2:7][CH2:6]2)[O:4][CH2:3][CH2:2]1.N12CCCN=C1CCCCC2.[C:28]([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=1[C:36]1[CH:41]=[CH:40][C:39]([CH2:42][CH:43]([C:48](=O)[CH2:49][CH2:50][CH2:51][CH3:52])[C:44](OC)=[O:45])=[CH:38][C:37]=1[F:54])#[N:29].C(OCC)(=O)C>CCN(C1C=CC=CC=1)CC.O>[CH2:49]([C:48]1[N:16]2[N:15]=[CH:14][CH:13]=[C:12]2[N:11]([CH:8]2[CH2:7][CH2:6][C:5]3([O:4][CH2:3][CH2:2][O:1]3)[CH2:10][CH2:9]2)[C:44](=[O:45])[C:43]=1[CH2:42][C:39]1[CH:40]=[CH:41][C:36]([C:31]2[C:30]([C:28]#[N:29])=[CH:35][CH:34]=[CH:33][CH:32]=2)=[C:37]([F:54])[CH:38]=1)[CH2:50][CH2:51][CH3:52]

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 67009202Methyl 2-[(2'-cyano-2-fluorobiphenyl-4-yl)methyl]-3-oxoheptanoateHCID 67009993N-(1,4-dioxaspiro[4.5]dec-8-yl)-1H-pyrazol-5-amine

Product 1

HCID 670085724'-{[7-Butyl-4-(1,4-dioxaspiro[4.5]dec-8-yl)-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}-2'-fluorobiphenyl-2-carbonitrileYield 88.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 7061N,N-DiethylanilineSolvent

Procedure

A solution of N-(1,4-dioxaspiro[4.5]dec-8-yl)-1H-pyrazol-5-amine (2.2 g), 1,8-diazabicyclo[5.4.0]undec-7-ene (0.30 mL) and methyl 2-[(2′-cyano-2-fluorobiphenyl-4-yl)methyl]-3-oxoheptanoate (6.4 g) in diethylaniline (10 mL) was stirred at 180° C. for 2 hr. The mixture was allowed to cool, ethyl acetate and water were added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and 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 (4.7 g, 87%).

Workup

  1. temperatureto cool
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-4563fdaa1e2f4b6c91383058722a6dbf
Source dataset
uspto-grants-2012_10
Patent number
US08283353B2

Reaction notes

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