Maleic Acid → 1-[1-(1-methyl-4-piperidyl)tetrahydro-1H-3-pyrrolyl]-3-(4-phenoxyphenyl)-1H-pyrazolo [3,4-d]pyrimidin-4-amine, trimaleate salt

HRID 432293Notes

Reaction equation

HRID 432293 reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]([N:8]2[CH2:12][CH2:11][CH:10]([N:13]3[C:17]4=[N:18][CH:19]=[N:20][C:21]([NH2:22])=[C:16]4[C:15]([C:23]4[CH:28]=[CH:27][C:26]([O:29][C:30]5[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=5)=[CH:25][CH:24]=4)=[N:14]3)[CH2:9]2)[CH2:4][CH2:3]1.[C:36]([OH:43])(=[O:42])/[CH:37]=[CH:38]\[C:39]([OH:41])=[O:40]>C(OCC)(=O)C>[C:36]([OH:43])(=[O:42])/[CH:37]=[CH:38]\[C:39]([OH:41])=[O:40].[C:36]([OH:43])(=[O:42])/[CH:37]=[CH:38]\[C:39]([OH:41])=[O:40].[C:36]([OH:43])(=[O:42])/[CH:37]=[CH:38]\[C:39]([OH:41])=[O:40].[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]([N:8]2[CH2:12][CH2:11][CH:10]([N:13]3[C:17]4=[N:18][CH:19]=[N:20][C:21]([NH2:22])=[C:16]4[C:15]([C:23]4[CH:28]=[CH:27][C:26]([O:29][C:30]5[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=5)=[CH:25][CH:24]=4)=[N:14]3)[CH2:9]2)[CH2:4][CH2:3]1

Participants

4

Reactant 2

HCID 444266Maleic AcidHCID 223470641-[1-(1-methyl-4-piperidyl)tetrahydro-1H-3-pyrrolyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 1317242451-[1-(1-methyl-4-piperidyl)tetrahydro-1H-3-pyrrolyl]-3-(4-phenoxyphenyl)-1H-pyrazolo [3,4-d]pyrimidin-4-amine, trimaleate saltYield 90%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent2×

Procedure

1-[1-(1-Methyl-4-piperidyl)tetrahydro-1H-3-pyrrolyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (148 mg, 0.315 mmol) was dissolved in hot ethyl acetate (20 mL) and maleic acid (110 mg, 0.946 mmol) in hot ethyl acetate (1 mL) was added. The reaction mixture was stirred at room temperature for 5 hours. The solid was collected by filtration to give 1-[1-(1-methyl-4-piperidyl)tetrahydro-1H-3-pyrrolyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine, trimaleate salt (230 mg, 90%). 1H NMR (DMSO-d6) δ 1.81 (m, 2H), 2.27 (m, 2H), 2.78 (s, 3H), 2.97-3.84 (bm, 1H), 5.63 (m, 1H), 6.12 (s, 6H), 7.17 (m, 5H), 7.45 (m, 2H), 7.68 (m, 2H), 8.29 (s, 1H). LCMS (Micromass-Column: Pecosphere, C18, 3 um, 33×4.6 mm. Eluents: 0% B/A to 100% B/A in 4.5 min. (B: acetonitrile, A: 50 mM ammonia acetate buffer, PH 4.5), 3.5 mL/min.): MH+ =470.4, Rt=2.01.

Workup

  1. filtrationThe solid was collected by filtration

Sources & evidence

ORD record
ord-a43fc5c89d1f48e49477111f70065828
Source dataset
uspto-grants-2003_12
Patent number
US06660744B1

Reaction notes

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