Cyanoacetic acid → 3-(3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)-3-oxopropanenitrile

HRID 1854882Notes

Reaction equation

HRID 1854882 reaction equation
[O:1]([C:8]1[CH:13]=[CH:12][C:11]([C:14]2[C:22]3[C:17](=[N:18][CH:19]=[N:20][C:21]=3[NH2:23])[N:16]([CH:24]3[CH2:29][CH2:28][CH2:27][NH:26][CH2:25]3)[N:15]=2)=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N1C=CN=C1)(N1C=CN=C1)=O.[C:42]([CH2:44][C:45](O)=[O:46])#[N:43]>ClCCl>[NH2:23][C:21]1[N:20]=[CH:19][N:18]=[C:17]2[N:16]([CH:24]3[CH2:29][CH2:28][CH2:27][N:26]([C:45](=[O:46])[CH2:44][C:42]#[N:43])[CH2:25]3)[N:15]=[C:14]([C:11]3[CH:10]=[CH:9][C:8]([O:1][C:2]4[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=4)=[CH:13][CH:12]=3)[C:22]=12

Participants

5

Reactant 3

HCID 9740Cyanoacetic acidHCID 682631,1'-CarbonyldiimidazoleHCID 670954873-(4-Phenoxy-phenyl)-1-piperidin-3-yl-1H-pyrazolo[3,4-d]pyrimidin-4-ylamine

Product 1

HCID 710156883-(3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)-3-oxopropanenitrileYield 56%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A mixture of 3-(4-phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (580 mg, 1.50 mmol, 1.00 equiv), carbonyldiimidazole (365 mg, 2.25 mmol, 1.50 equiv) and 2-cyanoacetic acid (190 mg, 2.24 mmol, 1.49 equiv) in dichloromethane (100 mL) was stirred at room temperature for 24 h. The reaction mixture was diluted with 100 ml, of dichloromethane and washed with 3×100 mL of saturated aqueous ammonium chloride solution. The organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified on a silica gel column eluted with dichloromethane/methanol (100/1) to give 380 mg (56%) of 3-[3-[4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]-3-oxopropanenitrile as a white solid.

Workup

  1. washwashed with 3×100 mL of saturated aqueous ammonium chloride solution
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. concentrationconcentrated under vacuum
  4. customThe residue was purified on a silica gel column
  5. washeluted with dichloromethane/methanol (100/1)

Sources & evidence

ORD record
ord-446d76a912e046ec930e891ab60c6ec5
Source dataset
uspto-grants-2015_02
Patent number
US08962831B2

Reaction notes

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