Acetic Acid → (R)-5-(1-amino-1-oxobutan-2-ylamino)-3-(4-(pyridin-3-yl)phenylamino)pyrazine-2-carboxamide

HRID 2200463Notes

Reaction equation

HRID 2200463 reaction equation
[C:1]([C:3]1[N:4]=[CH:5][C:6]([NH:22][C@H:23]([CH2:27][CH3:28])[C:24]([NH2:26])=[O:25])=[N:7][C:8]=1[NH:9][C:10]1[CH:15]=[CH:14][C:13]([C:16]2[CH:17]=[N:18][CH:19]=[CH:20][CH:21]=2)=[CH:12][CH:11]=1)#[N:2].[OH-].[Na+].OO.CC(O)=[O:35]>CCO.CS(C)=O>[NH2:26][C:24](=[O:25])[C@H:23]([NH:22][C:6]1[N:7]=[C:8]([NH:9][C:10]2[CH:11]=[CH:12][C:13]([C:16]3[CH:17]=[N:18][CH:19]=[CH:20][CH:21]=3)=[CH:14][CH:15]=2)[C:3]([C:1]([NH2:2])=[O:35])=[N:4][CH:5]=1)[CH2:27][CH3:28]

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 784Hydrogen PeroxideHCID 14798Sodium HydroxideHCID 86685585(R)-2-(5-cyano-6-(4-(pyridin-3-yl)phenylamino)pyrazin-2-ylamino)butanamide

Product 1

HCID 71571723(R)-5-(1-amino-1-oxobutan-2-ylamino)-3-(4-(pyridin-3-yl)phenylamino)pyrazine-2-carboxamide

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 702EthanolSolvent

Procedure

The compound (R)-2-(5-cyano-6-(4-(pyridin-3-yl)phenylamino)pyrazin-2-ylamino)butanamide (90 mg, 0.241 mmol) was dissolved in EtOH (2 mL) and DMSO (1 mL), aq. 1N NaOH (1.0 mL) and aq. H2O2 (30%, 1.0 mL) were added. The mixture was stirred at room temperature for 20 min. HOAc (0.1 mL) was added. The mixture was then concentrated in vacuo. To the residue, CH3CN (6 mL) and H2O (8 mL) were added to induce precipitation. The precipitate was collected by filtration, and dried on vacuum to give the titled compound (40 mg). The filtrate was purified by HPLC to give additional titled compound (11 mg). MS 392.3 (M+H); UV 202.3, 235.8, 274.4, 336.1 nm; t 0.404 min.

Workup

  1. concentrationThe mixture was then concentrated in vacuo
  2. additionTo the residue, CH3CN (6 mL) and H2O (8 mL) were added
  3. customprecipitation
  4. filtrationThe precipitate was collected by filtration
  5. customdried on vacuum

Sources & evidence

ORD record
ord-b87f6115d5be4a8da54b7c25675b1722
Source dataset
uspto-grants-2016_06
Patent number
US09359308B2

Reaction notes

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