2-Imidazolidinone → (S)-1-{2-[1-(4-fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}imidazolidin-2-one

HRID 1187685Notes

Reaction equation

HRID 1187685 reaction equation
Cl[C:2]1[N:7]=[C:6]([NH:8][C@H:9]([C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)[CH3:10])[N:5]=[C:4]([NH:18][C:19]2[CH:24]=[N:23][CH:22]=[CH:21][N:20]=2)[CH:3]=1.[NH:25]1[CH2:29][CH2:28][NH:27][C:26]1=[O:30].P([O-])([O-])([O-])=O.[K+].[K+].[K+].O1CCOCC1>C(OCC)(=O)C>[F:17][C:14]1[CH:15]=[CH:16][C:11]([C@@H:9]([NH:8][C:6]2[N:7]=[C:2]([N:25]3[CH2:29][CH2:28][NH:27][C:26]3=[O:30])[CH:3]=[C:4]([NH:18][C:19]3[CH:24]=[N:23][CH:22]=[CH:21][N:20]=3)[N:5]=2)[CH3:10])=[CH:12][CH:13]=1

Participants

6

Reactant 4

HCID 84532-ImidazolidinoneHCID 312751,4-DioxaneHCID 62657Potassium Phosphate, TribasicHCID 86659380(S)-6-Chloro-N2-[1-(4-fluorophenyl)ethyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine

Product 1

HCID 46866537(S)-1-{2-[1-(4-fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}imidazolidin-2-oneYield 46.6%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

150 mg of (S)-6-chloro-N2-[1-(4-fluorophenyl)ethyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine (Example 9), 224 mg of 2-imidazolidinone, 26 mg of 4,5-bis(diphenylphosphino)-9,9′-dimethylxanthene, 185 mg of tripotassium phosphate and 23 mg of tris(dibenzylideneacetone)(chloroform)dipalladium were added in turn to 5 ml of degassed 1,4-dioxane, and then the mixture was stirred at 100° C. for 2 hours under argon atmosphere. The reaction solution was diluted with ethyl acetate. The solution was washed with water, and then dried over magnesium sulfate. The solvent was distilled off under reduced pressure, and then the obtained residue was purified by silica gel column chromatography to obtain 80 mg of (S)-1-{2-[1-(4-fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}imidazolidin-2-one as white powder. Furthermore, the obtained compound was subjected to hydrochlorination using a conventional method to obtain 56 mg of the objective compound as pale yellow powder.

Workup

  1. washThe solution was washed with water
  2. dry with materialdried over magnesium sulfate
  3. distillationThe solvent was distilled off under reduced pressure
  4. customthe obtained residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-d30a372319d34251a1a5ff6715e6e4aa
Source dataset
uspto-grants-2014_03
Patent number
US08673891B2

Reaction notes

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