Cyanoacetic acid → 3-[(3R)-3-[4-amino-3-[4-(2-fluorophenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]-3-oxopropanenitrile

HRID 409082Notes

Reaction equation

HRID 409082 reaction equation
[F:1][C:2]1[CH:30]=[CH:29][CH:28]=[CH:27][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][C:8]([C:11]2[C:19]3[C:14](=[N:15][CH:16]=[N:17][C:18]=3[NH2:20])[N:13]([C@@H:21]3[CH2:26][CH2:25][CH2:24][NH:23][CH2:22]3)[N:12]=2)=[CH:7][CH:6]=1.N1(C(N2C=CN=C2)=O)C=CN=C1.[C:43]([CH2:45][C:46](O)=[O:47])#[N:44]>ClCCl>[NH2:20][C:18]1[N:17]=[CH:16][N:15]=[C:14]2[N:13]([C@@H:21]3[CH2:26][CH2:25][CH2:24][N:23]([C:46](=[O:47])[CH2:45][C:43]#[N:44])[CH2:22]3)[N:12]=[C:11]([C:8]3[CH:7]=[CH:6][C:5]([O:4][C:3]4[CH:27]=[CH:28][CH:29]=[CH:30][C:2]=4[F:1])=[CH:10][CH:9]=3)[C:19]=12

Participants

5

Reactant 3

HCID 9740Cyanoacetic acidHCID 682631,1'-CarbonyldiimidazoleHCID 867144813-[4-(2-fluorophenoxy)-phenyl]-1-[(3R)-piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 867144823-[(3R)-3-[4-amino-3-[4-(2-fluorophenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]-3-oxopropanenitrileYield 51%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Into a 50 mL round-bottom flask, was placed a solution of 3-[4-(2-fluorophenoxy)-phenyl]-1-[(3R)-piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (100 mg, 0.25 mmol, 1.00 equiv) in dichloromethane (10 mL), 1-[(1H-imidazol-1-yl)carbonyl]-1H-imidazole (60 mg, 0.37 mmol, 1.50 equiv), and 2-cyanoacetic acid (110 mg, 1.29 mmol, 5.23 equiv). The resulting solution was stirred for 60 min at room temperature and then concentrated under vacuum. The residue was loaded onto a silica gel column and eluted with dichloromethane/methanol (100:1) to give 0.06 g (51%) of 3-[(3R)-3-[4-amino-3-[4-(2-fluorophenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]-3-oxopropanenitrile as a light yellow solid.

Workup

  1. customInto a 50 mL round-bottom flask, was placed
  2. concentrationconcentrated under vacuum
  3. washeluted with dichloromethane/methanol (100:1)

Sources & evidence

ORD record
ord-06466c6e2aa845148bd45987edffe4b0
Source dataset
uspto-grants-2014_06
Patent number
US08759358B1

Reaction notes

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