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Potassium Carbonate → 5-methyl-7-neopentyl-2-(4-(pyridin-4-yl)benzyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

HRID 57658
Notes
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Reaction equation

HRID 57658 reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[C:6]2=[CH:9][NH:10][N:11]=[C:5]2[N:4]([CH2:12][C:13]([CH3:16])([CH3:15])[CH3:14])[C:3]1=[O:17].Cl[CH2:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]2[CH:31]=[CH:30][N:29]=[CH:28][CH:27]=2)=[CH:22][CH:21]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O>[CH3:1][N:2]1[C:7](=[O:8])[C:6]2=[CH:9][N:10]([CH2:19][C:20]3[CH:21]=[CH:22][C:23]([C:26]4[CH:31]=[CH:30][N:29]=[CH:28][CH:27]=4)=[CH:24][CH:25]=3)[N:11]=[C:5]2[N:4]([CH2:12][C:13]([CH3:14])([CH3:16])[CH3:15])[C:3]1=[O:17]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 674017084-(4-(Chloromethyl)phenyl)pyridineHCID 178481352HCID 178481352, compound

Product 1

HCID 700974725-methyl-7-neopentyl-2-(4-(pyridin-4-yl)benzyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dioneYield 126.4%

Reagents, catalysts & solvents 2

HCID 962Water
Solvent
HCID 6228DimethylformamideSolvent

Procedure

5-methyl-7-neopentyl-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (236 mg, 1.0 mmol), 4-(4-(chloromethyl)phenyl)pyridine (305 mg, 1.5 mmol) and potassium carbonate (414 mg, 3.0 mmol) are suspensed in 3 mL of DMF. The reaction mixture is stirred at room temperature overnight, and then diluted with 100 mL of water. The mixture is extracted with methylene chloride four times (40 mL×4). The combined organic phase is dried over anhydrous sodium sulfate. After filtration, the filtrate is evaporated to dryness to give 510 mg of crude product, which is used in the next step without further purification. MS (ESI) m/z 404.2 [M+H]+.

Workup

  1. extractionThe mixture is extracted with methylene chloride four times (40 mL×4)
  2. dry with materialThe combined organic phase is dried over anhydrous sodium sulfate
  3. filtrationAfter filtration
  4. customthe filtrate is evaporated to dryness

Sources & evidence

ORD record
ord-7cefa2a4d7e740288cdf381fd129b57c
Source dataset
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09434730B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes