N,N-Dimethylglycine → Rac-1-[3-(4-amino-3-iodo-1h-pyrazolo[3,4-d]pyrimidin-1-yl)tetrahydro-1h-1-pyrrolyl]-2-(dimethylamino)-1-ethanone

HRID 2056127Notes

Reaction equation

HRID 2056127 reaction equation
Cl.[I:2][C:3]1[C:11]2[C:6](=[N:7][CH:8]=[N:9][C:10]=2[NH2:12])[N:5]([CH:13]2[CH2:17][CH2:16][NH:15][CH2:14]2)[N:4]=1.[CH3:18][N:19]([CH3:24])[CH2:20][C:21](O)=[O:22].ON1C2N=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.C(N(C(C)C)CC)(C)C>ClCCl.O>[NH2:12][C:10]1[N:9]=[CH:8][N:7]=[C:6]2[N:5]([CH:13]3[CH2:17][CH2:16][N:15]([C:21](=[O:22])[CH2:20][N:19]([CH3:24])[CH3:18])[CH2:14]3)[N:4]=[C:3]([I:2])[C:11]=12

Participants

8

Reactant 5

HCID 673N,N-DimethylglycineHCID 81531DiisopropylethylamineHCID 181649HOAtHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 223473313-iodo-1-tetrahydro-1H-3-pyrrolyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine hydrochloride

Product 1

HCID 69203801Rac-1-[3-(4-amino-3-iodo-1h-pyrazolo[3,4-d]pyrimidin-1-yl)tetrahydro-1h-1-pyrrolyl]-2-(dimethylamino)-1-ethanoneYield 67%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of rac-3-iodo-1-tetrahydro-1H-3-pyrrolyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine monohydrochloride (0.367 g, 1.00 mmol) in dichloromethane (10 mL) was added 2-(dimethylamino)acetic acid (0.134 g, 1.30 mmol), 1-hydroxy-7-azabenzotriazole (0.150 g, 1.10 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.249 g, 1.30 mmol), and diisopropylethyl amine (0.65 g, 0.87 mL, 5.0 mmol). The reaction mixture stirred at room temperature for 18 h and was then poured into water (10 mL). The organic phase was separated and washed with brine (10 mL), dried over anhydrous magnesium sulfate, filtered, and concentrated to afford rac-1-[3-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)tetrahydro-1H-1-pyrrolyl]-2-(dimethylamino)-1-ethanone as a yellow-orange solid (0.278 g, 67%) which was used in subsequent reactions without further purification.

Workup

  1. customThe organic phase was separated
  2. washwashed with brine (10 mL)
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-ad1c666f2c564e739c79754513921ba5
Source dataset
uspto-grants-2008_02
Patent number
US07332497B2

Reaction notes

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