Triethylamine → 4-{[3-(2-methylsulfanyl-pyrimidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester

HRID 1809686Notes

Reaction equation

HRID 1809686 reaction equation
Cl[C:2]1[N:7]=[C:6]2[NH:8][N:9]=[C:10]([C:11]3[CH:16]=[CH:15][N:14]=[C:13]([S:17][CH3:18])[N:12]=3)[C:5]2=[CH:4][N:3]=1.[NH2:19][CH2:20][CH:21]1[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:23][CH2:22]1.C(N(CC)CC)C>CC(O)C>[C:30]([O:29][C:27]([N:24]1[CH2:25][CH2:26][CH:21]([CH2:20][NH:19][C:2]2[N:7]=[C:6]3[NH:8][N:9]=[C:10]([C:11]4[CH:16]=[CH:15][N:14]=[C:13]([S:17][CH3:18])[N:12]=4)[C:5]3=[CH:4][N:3]=2)[CH2:22][CH2:23]1)=[O:28])([CH3:33])([CH3:32])[CH3:31]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 7368171-Boc-4-(aminomethyl)piperidineHCID 178503430HCID 178503430, compound

Product 1

HCID 1785034334-{[3-(2-methylsulfanyl-pyrimidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

To a solution of 6-chloro-3-(2-methylsulfanyl-pyrimidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidine (from Example 7 supra) (500 mg, 1.8 mmol) in 2-propanol (40 mL) was added tert-butyl 4-(aminomethyl)piperidine-1-carboxylate (420 mg, 2.0 mmol) followed by triethylamine (200 mg, 2.0 mmol). The reaction mixture was stirred at reflux for 15 hours. The solvent was then removed under reduced pressure. The residue was extracted with dichloromethane (3×30 mL), washed with water (5 mL), dried over anhydrous sodium sulfate, filtered, and concentrated to afford 4-{[3-(2-methylsulfanyl-pyrimidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester. (Yield 700 mg, 85.3%).

Workup

  1. temperatureat reflux for 15 hours
  2. customThe solvent was then removed under reduced pressure
  3. extractionThe residue was extracted with dichloromethane (3×30 mL)
  4. washwashed with water (5 mL)
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-bde787841ed74d7381bd188cba0dcf61
Source dataset
uspto-grants-2013_01
Patent number
US08362023B2

Reaction notes

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