Dimethylformamide → 1-{2-[4-(4-Chloro-2-fluoro-5-methoxy-phenyl)-2-(S)-methyl-piperazin-1-yl]-2-oxo-ethyl}-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile

HRID 930577Notes

Reaction equation

HRID 930577 reaction equation
[Cl:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][C:5]([N:10]2[CH2:15][CH2:14][N:13]([C:16](=[O:28])[CH2:17][N:18]3[C:22]4=[N:23][CH:24]=[CH:25][CH:26]=[C:21]4[C:20](I)=[N:19]3)[C@@H:12]([CH3:29])[CH2:11]2)=[C:4]([F:30])[CH:3]=1.[C:31]([Cu])#[N:32].CN(C=O)C>C(OCC)(=O)C>[Cl:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][C:5]([N:10]2[CH2:15][CH2:14][N:13]([C:16](=[O:28])[CH2:17][N:18]3[C:22]4=[N:23][CH:24]=[CH:25][CH:26]=[C:21]4[C:20]([C:31]#[N:32])=[N:19]3)[C@@H:12]([CH3:29])[CH2:11]2)=[C:4]([F:30])[CH:3]=1

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 160060321-[(S)-4-(4-Chloro-2-fluoro-5-methoxy-phenyl)-2-methyl-piperazin-1-yl]-2-(3-iodo-pyrazolo[3,4-b]pyridin-1-yl)-ethanoneHCID 178418546HCID 178418546, compound

Product 1

HCID 576427861-{2-[4-(4-Chloro-2-fluoro-5-methoxy-phenyl)-2-(S)-methyl-piperazin-1-yl]-2-oxo-ethyl}-1H-pyrazolo[3,4-b]pyridine-3-carbonitrileYield 90.3%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
175 °C

Procedure

A mixture of 1-[(S)-4-(4-Chloro-2-fluoro-5-methoxy-phenyl)-2-methyl-piperazin-1-yl]-2-(3-iodo-pyrazolo[3,4-b]pyridin-1-yl)-ethanone (2.2 g, 4.0 mmol, 1 eq), CuCN (3.6 g, 40 mmol, 10 eq), and DMF (25 ml) was stirred at 175° C. for 1 hrs. The reaction mixture was cooled to rt, diluted with ethyl acetate and filtered. The filtrate was washed with water, dried over Na2SO4, and purified by flash chromatography to provide 1-{2-[4-(4-Chloro-2-fluoro-5-methoxy-phenyl)-2-(S)-methyl-piperazin-1-yl]-2-oxo-ethyl}-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile (1.6 g).

Workup

  1. temperatureThe reaction mixture was cooled to rt
  2. filtrationfiltered
  3. washThe filtrate was washed with water
  4. dry with materialdried over Na2SO4
  5. custompurified by flash chromatography

Sources & evidence

ORD record
ord-a6372b90f41b493d8552a57194638476
Source dataset
uspto-grants-2016_03
Patent number
US09296740B2

Reaction notes

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