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Dimethylformamide → 6-Amino-9-benzyl-2-(3-methylbutyl)thiopurine

HRID 2269081
Notes
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Reaction equation

HRID 2269081 reaction equation
CN(C=O)C.[H-].[Na+].[CH3:8][CH:9]([CH3:13])[CH2:10][CH2:11][SH:12].[NH2:14][C:15]1[N:23]=[C:22](Cl)[N:21]=[C:20]2[C:16]=1[N:17]=[CH:18][N:19]2[CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1>[Cl-].[Na+].O>[NH2:14][C:15]1[N:23]=[C:22]([S:12][CH2:11][CH2:10][CH:9]([CH3:13])[CH3:8])[N:21]=[C:20]2[C:16]=1[N:17]=[CH:18][N:19]2[CH2:25][C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 10925Isoamyl mercaptanHCID 24758Sodium hydrideHCID 2764829-Benzyl-2-chloro-9h-purin-6-amine

Product 1

HCID 183327066-Amino-9-benzyl-2-(3-methylbutyl)thiopurineYield 48%

Reagents, catalysts & solvents 1

HCID 57417360
Sodium chloride; water
Solvent

Conditions

Temperature
100 °C

Procedure

To DMF suspension (10 ml) containing sodium hydride (300 mg, 7.5 mmol, 60% in mineral oil) were added 3-methylbutane-1-thiol (1 ml, 8.0 mmol) and 6-amino-9-benzyl-2-chloropurine (200 mg, 0.77 mmol) in order. The mixture was stirred under heating at 100° C. for 2.5 hours. Brine was added thereto and the mixture was extracted with chloroform. The organic layer was dried on magnesium sulfate, filtered and the solvent in the filtrate was evaporated in vacuo. The residue was purified with silica gel chromatography (1% methanol/chloroform) to give the subject compound (120 mg, yield 48%).

Workup

  1. extractionthe mixture was extracted with chloroform
  2. customThe organic layer was dried on magnesium sulfate
  3. filtrationfiltered
  4. customthe solvent in the filtrate was evaporated in vacuo
  5. customThe residue was purified with silica gel chromatography (1% methanol/chloroform)

Sources & evidence

ORD record
ord-2d798de5b8e042ba8ed70df02dbd3c73
Source dataset
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06329381B1

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes