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Propyl mercaptan → 7-(4-chlorobenzyl)-3-methyl-8-(propylthio)-1H-purine-2,6(3H,7H)-dione

HRID 2200712
Notes
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Reaction equation

HRID 2200712 reaction equation
Br[C:2]1[N:10]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)[C:9]2[C:8](=[O:19])[NH:7][C:6](=[O:20])[N:5]([CH3:21])[C:4]=2[N:3]=1.[CH2:22]([SH:25])[CH2:23][CH3:24].C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[Cl:18][C:15]1[CH:16]=[CH:17][C:12]([CH2:11][N:10]2[C:9]3[C:8](=[O:19])[NH:7][C:6](=[O:20])[N:5]([CH3:21])[C:4]=3[N:3]=[C:2]2[S:25][CH2:22][CH2:23][CH3:24])=[CH:13][CH:14]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 7848Propyl mercaptanHCID 11430Potassium CarbonateHCID 11089258-bromo-7-(4-chlorobenzyl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione2×

Product 1

HCID 38399567-(4-chlorobenzyl)-3-methyl-8-(propylthio)-1H-purine-2,6(3H,7H)-dioneYield 125.9%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent

Conditions

Temperature
60 °C

Procedure

To a solution of 8-bromo-7-(4-chlorobenzyl)-3-methyl-1H-purine-2,6(3H,7H)-dione (100 mg, 0.27 mmol, intermediate 8) in DMF (5 mL) was added propane-1-thiol (24.7 mg, 0.32 mmol) followed by potassium carbonate (112.2 mg, 0.81 mmol). The reaction was stirred at 60° C. for 4 h. The reaction was cooled and partitioned between ethyl acetate and water. The organic phase was washed with brine, dried over sodium sulfate, filtered and concentrated to give a crude white solid product (124 mg, 99.9% yield). LCMS MH+ 365.

Workup

  1. temperatureThe reaction was cooled
  2. custompartitioned between ethyl acetate and water
  3. washThe organic phase was washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-e450afdd07b343f39da1a5e2d2dc3ba9
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09359359B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes