Sodium hydride → 2-(4-Chloro-3-cyclopropyl-5-phenyl-pyrazolo[3,4-c]pyridazin-1-yl)-1-pyrrolidin-1-yl-ethanone

HRID 588590Notes

Reaction equation

HRID 588590 reaction equation
[H-].[Na+].[Cl:3][C:4]1[C:9]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[N:8][N:7]=[C:6]2[NH:16][N:17]=[C:18]([CH:19]3[CH2:21][CH2:20]3)[C:5]=12.Cl[CH2:23][C:24]([N:26]1[CH2:30][CH2:29][CH2:28][CH2:27]1)=[O:25]>CN(C=O)C.C(OCC)(=O)C.O>[Cl:3][C:4]1[C:9]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[N:8][N:7]=[C:6]2[N:16]([CH2:23][C:24]([N:26]3[CH2:30][CH2:29][CH2:28][CH2:27]3)=[O:25])[N:17]=[C:18]([CH:19]3[CH2:21][CH2:20]3)[C:5]=12

Participants

7

Reactant 3

HCID 24758Sodium hydrideHCID 884401-(Chloroacetyl)pyrrolidineHCID 86717280HCID 86717280, compound

Product 1

HCID 867172902-(4-Chloro-3-cyclopropyl-5-phenyl-pyrazolo[3,4-c]pyridazin-1-yl)-1-pyrrolidin-1-yl-ethanoneYield 46%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

Sodium hydride (60% in mineral oil, 18 mg, 0.44 mmol) was added to a solution of 4-chloro-3-cyclopropyl-5-phenyl-1H-pyrazolo[3,4-c]pyridazine (100 mg, 0.37 mmol) and 2-chloro-1-(pyrrolidin-1-yl)ethanone (82 mg, 0.55 mmol) in dry DMF (3 mL) at room temperature for 16 h. The reaction mixture was diluted with ethyl acetate and water. The organic layer was washed with water, dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by column chromatography (silica gel, CH2Cl2/diethyl ether 8:2) to provide Compound Iee as a solid (65 mg).

Workup

  1. washThe organic layer was washed with water
  2. dry with materialdried (MgSO4)
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by column chromatography (silica gel, CH2Cl2/diethyl ether 8:2)

Sources & evidence

ORD record
ord-5b90b7c0b19f4b43a87066a381f77a24
Source dataset
uspto-grants-2016_01
Patent number
US09227976B2

Reaction notes

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