(S)-(-)-3-Acetamidopyrrolidine → N-((S)-1-[2-([(S)-1-(4-fluorophenyl)ethyl]amino)-6-(pyrazin-2-ylamino)pyridin-4-yl]pyrrolidin-3-yl)acetamide

HRID 2043420Notes

Reaction equation

HRID 2043420 reaction equation
Cl[C:2]1[CH:7]=[C:6]([NH:8][C:9]2[CH:14]=[N:13][CH:12]=[CH:11][N:10]=2)[N:5]=[C:4]([NH:15][C@H:16]([C:18]2[CH:23]=[CH:22][C:21]([F:24])=[CH:20][CH:19]=2)[CH3:17])[CH:3]=1.[NH:25]1[CH2:29][CH2:28][C@H:27]([NH:30][C:31](=[O:33])[CH3:32])[CH2:26]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.C1(C)C=CC=CC=1>[F:24][C:21]1[CH:22]=[CH:23][C:18]([C@@H:16]([NH:15][C:4]2[CH:3]=[C:2]([N:25]3[CH2:29][CH2:28][C@H:27]([NH:30][C:31](=[O:33])[CH3:32])[CH2:26]3)[CH:7]=[C:6]([NH:8][C:9]3[CH:14]=[N:13][CH:12]=[CH:11][N:10]=3)[N:5]=2)[CH3:17])=[CH:19][CH:20]=1

Participants

7

Reactant 4

HCID 7021471(S)-(-)-3-AcetamidopyrrolidineHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 23676156Sodium t-butoxideHCID 56602199(S)-4-Chloro-N2-[1-(4-fluorophenyl)ethyl]-N6-(pyrazin-2-yl)pyridine-2,6-diamine

Product 1

HCID 56599595N-((S)-1-[2-([(S)-1-(4-fluorophenyl)ethyl]amino)-6-(pyrazin-2-ylamino)pyridin-4-yl]pyrrolidin-3-yl)acetamideYield 90.8%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

100 mg of (S)-4-chloro-N2-[1-(4-fluorophenyl)ethyl]-N6-(pyrazin-2-yl)pyridine-2,6-diamine (Reference Example 2), 112 mg of (S)—N-(pyrrolidin-3-yl)acetamide, 69 mg of 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl, 92 mg of sodium t-butoxide and 30 mg of tris(dibenzylideneacetone)(chloroform)dipalladium were added in turn to 6 ml of degassed toluene, and 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 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 115 mg of N-{(S)-1-[2-{[(S)-1-(4-fluorophenyl)ethyl]amino}-6-(pyrazin-2-ylamino)pyridin-4-yl]pyrrolidin-3-yl}acetamide as pale brown powder. The obtained compound was subjected to hydrochlorination using a conventional method to obtain 67 mg of the objective compound as 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-230fc2861b014fe3a5d11d492b969b5f
Source dataset
uspto-grants-2013_11
Patent number
US08586591B2

Reaction notes

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