Aminopyrazine → HCID 86659412, compound

HRID 1187752Notes

Reaction equation

HRID 1187752 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])[CH:5]=[C:4]([C:18]2[CH2:19][CH2:20][N:21]([S:24]([CH3:27])(=[O:26])=[O:25])[CH2:22][CH:23]=2)[CH:3]=1.[NH2:28][C:29]1[CH:34]=[N:33][CH:32]=[CH:31][N:30]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1.CC(C)([O-])C.[Na+]>C(OCC)(=O)C.[Pd].[Pd].C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.C1(C)C=CC=CC=1>[F:17][C:14]1[CH:15]=[CH:16][C:11]([C@@H:9]([NH:8][C:6]2[CH:5]=[C:4]([C:18]3[CH2:19][CH2:20][N:21]([S:24]([CH3:27])(=[O:26])=[O:25])[CH2:22][CH:23]=3)[CH:3]=[C:2]([NH:28][C:29]3[CH:34]=[N:33][CH:32]=[CH:31][N:30]=3)[N:7]=2)[CH3:10])=[CH:12][CH:13]=1

Participants

8

Reactant 4

HCID 78747AminopyrazineHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 23676156Sodium t-butoxideHCID 86659410HCID 86659410, compound

Product 1

HCID 86659412HCID 86659412, compoundYield 67.7%

Reagents, catalysts & solvents 3

HCID 9832798Tris(dibenzylideneacetone) dipalladiumCatalystHCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

115 mg of (S)-6-chloro-N-[1-(4-fluorophenyl)ethyl]-4-[1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl]pyridine-2-amine, 40 mg of 2-aminopyrazine, 53 mg of 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl, 40 mg of sodium t-butoxide and 26 mg of tris(dibenzylideneacetone) dipalladium were added in turn to 5 ml of degassed toluene, and the mixture was stirred at 100° C. for 5 hours under argon atmosphere. The reaction solution was diluted with ethyl acetate. The solution was washed in turn with water and brine 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 89 mg of the objective compound as pale brown powder.

Workup

  1. washThe solution was washed in turn with water and brine
  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-612bf47e810b4bc399f286ad2ab23ce8
Source dataset
uspto-grants-2014_03
Patent number
US08673891B2

Reaction notes

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