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 897582Notes

Reaction equation

HRID 897582 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, 11H), 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-075d5f251f8d4a8e8a4a0a4871ad0016
Source dataset
uspto-grants-2005_07
Patent number
US06921763B2

Reaction notes

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