Maleic Acid → 1-[4-(4-methylpiperazino)cyclohexyl]-3-(2-phenoxy-5-pyrimidinyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine bis maleate

HRID 432177Notes

Reaction equation

HRID 432177 reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([C@@H:8]2[CH2:13][CH2:12][C@H:11]([N:14]3[C:18]4=[N:19][CH:20]=[N:21][C:22]([NH2:23])=[C:17]4[C:16]([C:24]4[CH:25]=[N:26][C:27]([O:30][C:31]5[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=5)=[N:28][CH:29]=4)=[N:15]3)[CH2:10][CH2:9]2)[CH2:4][CH2:3]1.[C:37]([OH:44])(=[O:43])/[CH:38]=[CH:39]\[C:40]([OH:42])=[O:41]>C(O)C>[C:37]([OH:44])(=[O:43])/[CH:38]=[CH:39]\[C:40]([OH:42])=[O:41].[C:37]([OH:44])(=[O:43])/[CH:38]=[CH:39]\[C:40]([OH:42])=[O:41].[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([CH:8]2[CH2:13][CH2:12][CH:11]([N:14]3[C:18]4=[N:19][CH:20]=[N:21][C:22]([NH2:23])=[C:17]4[C:16]([C:24]4[CH:25]=[N:26][C:27]([O:30][C:31]5[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=5)=[N:28][CH:29]=4)=[N:15]3)[CH2:10][CH2:9]2)[CH2:4][CH2:3]1

Participants

4

Reactant 2

HCID 444266Maleic AcidHCID 178481011HCID 178481011, compound

Product 1

HCID 865862461-[4-(4-methylpiperazino)cyclohexyl]-3-(2-phenoxy-5-pyrimidinyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine bis maleateYield 87.5%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

A solution of cis-1-[4-(4-methylpiperazino)cyclohexyl]-3-(2-phenoxy-5-pyrimidinyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (int AW) (0.193 g, 0.00040 mol) in absolute ethanol (15 mL) was heated to reflux. A solution of maleic acid (0.184 g, 0.00159 mol) in absolute ethanol (10 mL) heated to 78° C. was added and the mixture was heated at reflux for 10 minutes. The mixture was allowed to cool to room temperature, and the white precipitate which formed was collected by filtration and washed with absolute ethanol (2×10 mL). The residual solvent was removed in vacuo to give 1-[4-(4-methylpiperazino)cyclohexyl]-3-(2-phenoxy-5-pyrimidinyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine bis maleate as a white solid (0.254 g, 0.00035 mol):

Workup

  1. additionwas added
  2. temperaturethe mixture was heated
  3. temperatureat reflux for 10 minutes
  4. customthe white precipitate which formed
  5. filtrationwas collected by filtration
  6. washwashed with absolute ethanol (2×10 mL)
  7. customThe residual solvent was removed in vacuo

Sources & evidence

ORD record
ord-36a32b290ee8486cb0ae2ad271ada795
Source dataset
uspto-grants-2003_12
Patent number
US06660744B1

Reaction notes

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