Iodoethane → 2-chloro-9-ethyl-6-(3-trifluoromethyl-phenyl-amino)-9H-purine

HRID 9902

Reaction equation

HRID 9902 reaction equation
[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([NH:6][CH:7]=[N:8]2)=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([C:18]([F:21])([F:20])[F:19])[CH:13]=2)[N:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:28](I)[CH3:29]>O1CCOCC1.O.CN(C=O)C.C(OCC)(=O)C>[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:28][CH3:29])=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([C:18]([F:21])([F:19])[F:20])[CH:13]=2)[N:3]=1

Participants

6

Reactant 3

HCID 6340IodoethaneHCID 10796Cesium carbonateHCID 219882372-Chloro-6-(3-trifluoromethyl-phenyl-amino)-purine

Product 1

HCID 219881872-chloro-9-ethyl-6-(3-trifluoromethyl-phenyl-amino)-9H-purine

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 86622776DMF dioxane waterSolvent

Procedure

A mixture comprising 1 g (3.2 mmol) of 2-chloro-6-(3-trifluoromethyl-phenyl-amino)-purine, 1.7 g (5.1 mmol) of caesium carbonate and 2.1 ml (25.6 mmol) of ethyl iodide in 7 ml of dioxane/water/DMF (8:2:2) is stirred at RT for 18 h. It is then diluted with ethyl acetate and the organic phase is washed with water. This phase is separated off and dried over sodium sulfate. After removal of the solvent, the residue is recrystallized from ethyl acetate and diethyl ether. 2-Chloro-9-ethyl-6-(3-trifluoromethyl-phenyl-amino)-9H-purine is obtained; m.p. 129–130° C.; FAB-MS: (M+H)+=342; Rf=0.6 (methylene chloride:methanol=9:1).

Workup

  1. washthe organic phase is washed with water
  2. customThis phase is separated off
  3. dry with materialdried over sodium sulfate
  4. customAfter removal of the solvent
  5. customthe residue is recrystallized from ethyl acetate and diethyl ether

Sources & evidence

ORD record
ord-bf83831a158f40d799e226584860bcea
Source dataset
uspto-grants-2006_08
Patent number
US07091346B1

Linked notes

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