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

HRID 519835
Notes
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Reaction equation

HRID 519835 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:49](=O)[CH2:50][CH2:51][CH3:52])[C:44](OCC)=[O:45])=[CH:38][C:37]=1[F:54])#[N:29].C(OCC)(=O)C>CCN(C1C=CC=CC=1)CC.O>[O:4]1[C:5]2([CH2:6][CH2:7][CH:8]([N:11]3[C:44](=[O:45])[C:43]([CH2:42][C:39]4[CH:40]=[CH:41][C:36]([C:31]5[C:30]([C:28]#[N:29])=[CH:35][CH:34]=[CH:33][CH:32]=5)=[C:37]([F:54])[CH:38]=4)=[C:49]([CH2:50][CH2:51][CH3:52])[N:16]4[N:15]=[CH:14][CH:13]=[C:12]34)[CH2:9][CH2:10]2)[O:1][CH2:2][CH2:3]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 67009623Ethyl 2-[(2'-cyano-2-fluorobiphenyl-4-yl)methyl]-3-oxohexanoateHCID 67009993N-(1,4-dioxaspiro[4.5]dec-8-yl)-1H-pyrazol-5-amine

Product 1

HCID 670096014'-{[4-(1,4-Dioxaspiro[4.5]dec-8-yl)-5-oxo-7-propyl-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}-2'-fluorobiphenyl-2-carbonitrile
Yield 82.9%

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 ethyl 2-[(2′-cyano-2-fluorobiphenyl-4-yl)methyl]-3-oxohexanoate (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 (4.3 g, 82%).

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-26d922701874466a8c1881e1fa661c5c
Source dataset
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09115136B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes