Acetic Acid → HCID 178463264, compound

HRID 897529Notes

Reaction equation

HRID 897529 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[N:14][C:15]=3[NH2:17])[N:10]([C@H:18]3[CH2:23][CH2:22][C@@H:21]([N:24]4[CH2:29][CH2:28][N:27]([CH3:30])[CH2:26][CH2:25]4)[CH2:20][CH2:19]3)[N:9]=2)=[CH:4][C:3]=1[F:31].[CH:32](=O)[CH3:33].C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH2:32]([NH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:16]3[C:11](=[N:12][CH:13]=[N:14][C:15]=3[NH2:17])[N:10]([C@H:18]3[CH2:23][CH2:22][C@@H:21]([N:24]4[CH2:25][CH2:26][N:27]([CH3:30])[CH2:28][CH2:29]4)[CH2:20][CH2:19]3)[N:9]=2)=[CH:4][C:3]=1[F:31])[CH3:33]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 177AcetaldehydeHCID 5049666Sodium triacetoxyborohydride2×HCID 178480987HCID 178480987, compound

Product 1

HCID 178463264HCID 178463264, compound

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent2×

Procedure

cis-3-(4-Amino-3-fluorophenyl)-1-[4-(4-methylpiperazino)cyclohexyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (75 mg, 0.177 mmol) was suspended in 1,2-dichloroethane (6 mL). A solution of acetaldehyde (12 mg, 0.266 mmol) in 1,2-dichloroethane (0.300 mL) and acetic acid (42 mg, 0.708 mmol) was added and the mixture was stirred for 1 hour. Sodium triacetoxyborohydride (75 mg, 0.354 mmol) was added. After 16 hours, more sodium triacetoxyborohydride (37 mg, 0.175 mmol) was added and the reaction continued for another 3 hours. The reaction mixture was then concentrated under reduced pressure. The residue was dissolved in dichloromethane (75 mL) then washed with saturated aqueous sodium bicarbonate (100 mL) and brine (100 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude product (80 mg) was collected as a colorless oil.

Workup

  1. waitAfter 16 hours
  2. waitthe reaction continued for another 3 hours
  3. concentrationThe reaction mixture was then concentrated under reduced pressure
  4. dissolutionThe residue was dissolved in dichloromethane (75 mL)
  5. washthen washed with saturated aqueous sodium bicarbonate (100 mL) and brine (100 mL)
  6. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe crude product (80 mg) was collected as a colorless oil

Sources & evidence

ORD record
ord-a0e6eb5e8d9745b7a7b7cb520c3cf226
Source dataset
uspto-grants-2005_07
Patent number
US06921763B2

Reaction notes

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