Acetic Acid → 1-{1-[(1-methyl-1H-2-imidazolyl)methyl]-3-azetanyl}-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

HRID 432227

Reaction equation

HRID 432227 reaction equation
[NH:1]1[CH2:4][CH:3]([N:5]2[C:9]3=[N:10][CH:11]=[N:12][C:13]([NH2:14])=[C:8]3[C:7]([C:15]3[CH:20]=[CH:19][C:18]([O:21][C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)=[CH:17][CH:16]=3)=[N:6]2)[CH2:2]1.[CH3:28][N:29]1[CH:33]=[CH:32][N:31]=[C:30]1[C:34](O)=O.C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClC(Cl)C>[CH3:28][N:29]1[CH:33]=[CH:32][N:31]=[C:30]1[CH2:34][N:1]1[CH2:2][CH:3]([N:5]2[C:9]3=[N:10][CH:11]=[N:12][C:13]([NH2:14])=[C:8]3[C:7]([C:15]3[CH:16]=[CH:17][C:18]([O:21][C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)=[CH:19][CH:20]=3)=[N:6]2)[CH2:4]1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 5576781-methyl-1H-imidazole-2-carboxylic acidHCID 5049666Sodium triacetoxyborohydrideHCID 223471371-(3-azetanyl)-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 223473851-{1-[(1-methyl-1H-2-imidazolyl)methyl]-3-azetanyl}-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amineYield 25.9%

Reagents, catalysts & solvents 1

HCID 63651,1-DichloroethaneSolvent

Procedure

A mixture of 1-(3-azetanyl)-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.06 g, 0.00017 mol), 1-methyl-1H-2-imidazolecarboxylic acid (0.056 g, 0.0005 mol), and acetic acid (0.03 g, 0.0005 mol) in dichloroethane (2.5 mL) was stirred at room temperature under an atmosphere of nitrogen for one and a half hours. Sodium triacetoxyborohydride (0.072 g, 0.00034 mol) was added into the mixture and stirred at ambient temperature under an atmosphere of nitrogen for two hours. The solvent was removed under reduced pressure, and the residue was purified by RP-HPLC (Hypersilprep HS C18, 8 μm, 250×21.1 mm; 5%-100% over 25 min with 0.1 M ammonium acetate, 21 mL/min) to yield 1-{1-[(1-methyl-1H-2-imidazolyl)methyl]-3-azetanyl}-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (0.020 g, 0.000044 mol).

Workup

  1. stirringstirred at ambient temperature under an atmosphere of nitrogen for two hours
  2. customThe solvent was removed under reduced pressure
  3. customthe residue was purified by RP-HPLC (Hypersilprep HS C18, 8 μm, 250×21.1 mm; 5%-100% over 25 min with 0.1 M ammonium acetate, 21 mL/min)

Sources & evidence

ORD record
ord-c1becd7ec2cb44389152f67a59531fe9
Source dataset
uspto-grants-2003_12
Patent number
US06660744B1

Linked notes

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