Hydrochloric Acid → HCID 22346985, compound

HRID 432244Notes

Reaction equation

HRID 432244 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:29]3[CH2:34][CH2:33][N:32]([C:35](=[O:46])[CH2:36][N:37](C)[C:38](=O)OC(C)(C)C)[CH2:31][CH2:30]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:18]([NH:20][C:21]4[CH:22]=[C:23]([CH3:27])[CH:24]=[CH:25][CH:26]=4)=[O:19])=[C:13]([F:28])[CH:12]=3)[C:3]=12.Cl>CC(C)=O>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:29]3[CH2:34][CH2:33][N:32]([C:35](=[O:46])[CH2:36][NH:37][CH3:38])[CH2:31][CH2:30]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:18]([NH:20][C:21]4[CH:26]=[CH:25][CH:24]=[C:23]([CH3:27])[CH:22]=4)=[O:19])=[C:13]([F:28])[CH:12]=3)[C:3]=12

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 22347380HCID 22347380, compound

Product 1

HCID 22346985HCID 22346985, compoundYield 63%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Conditions

Temperature
45 °C

Procedure

N-{4-[4-amino-1-(4-piperidyl)-1H-pyrazolo[3,4-d]pyrimidin-3-yl]-2-fluorophenyl}-N′-(3-methylphenyl)urea dihydrochloride salt (63 mg, 0.118 mmol) was dissolved in dichloromethane (7 mL) and N-ethyl-N-isopropylamine (0.113 mL), 2-[(tert-butoxycarbonyl)(methyl)amino]acetic acid (28mg, 0.147 mmol), 1-hydroxy-7-azabenzotriazole (16 mg, 0.118 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (28 mg, 0.147 mmol) were added to the reaction mixture. After 16 hours, the reaction mixture was diluted with dichloromethane (75 mL) then washed with water (75 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude product was isolated as a pale yellow solid (75 mg, 0.119 mmol). The crude tert-butyl N-{2-[4-(4-amino-3-{3-fluoro-4-[(3-toluidinocarbonyl)amino]phenyl}-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidino]-2-oxoethyl}-N-methylcarbamate (75 mg, 0.119 mmol) was dissolved in acetone (5 mL) then aqueous hydrochloric acid (6N, 1 mL) was slowly added. The reaction mixture was heated at 45° C. for 2.5 hours then concentrated under reduced pressure. The remaining residue was triturated with dichloromethane (25 mL) to yield a light yellow solid. Purification by RP-HPLC (Waters PrepLC 4000, flow rate: 10 mL/min. λ=254 nm Gradient: 10% to 30% acetonitrile/0.1M aqueous ammonium acetate gradient over 40 minutes; Deltapak C18, 300A, 15 μm, 40×100 mm column) afforded N-[4-(4-amino-1-{1-[2-(methylamino)acetyl]-4-piperidyl}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-2-fluorophenyl]-N′-(3-methylphenyl)urea as a white solid (40 mg, 0.075 mmol). HPLC-RT: 12.22 min. (flow rate: 1 mL/min λ=254 nm Gradient: 5% to 85% acetonitrile/0.1M aqueous ammonium acetate gradient over 20 min.; Deltapak C18, 300A, 5 μm, 150×3.9 mm column); m/z (MH+)=532.1.

Workup

  1. concentrationthen concentrated under reduced pressure
  2. customThe remaining residue was triturated with dichloromethane (25 mL)
  3. customto yield a light yellow solid
  4. customPurification by RP-HPLC (Waters PrepLC 4000, flow rate: 10 mL/min. λ=254 nm Gradient: 10% to 30% acetonitrile/0.1M aqueous ammonium acetate gradient over 40 minutes; Deltapak C18, 300A, 15 μm, 40×100 mm column)

Sources & evidence

ORD record
ord-20f638a3ece346c18fe3f1f99b85c752
Source dataset
uspto-grants-2003_12
Patent number
US06660744B1

Reaction notes

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