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Acetic Acid → (R)-5-(1-amino-4-methyl-1-oxopentan-2-ylamino)-3-(quinolin-3-ylamino)pyrazine-2-carboxamide

HRID 332718
Notes
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Reaction equation

HRID 332718 reaction equation
[C:1]([C:3]1[N:4]=[CH:5][C:6]([NH:20][C@H:21]([CH2:25][CH:26]([CH3:28])[CH3:27])[C:22]([NH2:24])=[O:23])=[N:7][C:8]=1[NH:9][C:10]1[CH:11]=[N:12][C:13]2[C:18]([CH:19]=1)=[CH:17][CH:16]=[CH:15][CH:14]=2)#[N:2].[OH-].[Na+].OO.CC(O)=[O:35]>CCO.CS(C)=O>[NH2:24][C:22](=[O:23])[C@H:21]([NH:20][C:6]1[N:7]=[C:8]([NH:9][C:10]2[CH:11]=[N:12][C:13]3[C:18]([CH:19]=2)=[CH:17][CH:16]=[CH:15][CH:14]=3)[C:3]([C:1]([NH2:2])=[O:35])=[N:4][CH:5]=1)[CH2:25][CH:26]([CH3:28])[CH3:27]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 784Hydrogen PeroxideHCID 14798Sodium HydroxideHCID 86685529(R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide

Product 1

HCID 71573319(R)-5-(1-amino-4-methyl-1-oxopentan-2-ylamino)-3-(quinolin-3-ylamino)pyrazine-2-carboxamide

Reagents, catalysts & solvents 2

HCID 679
Dimethyl Sulfoxide
Solvent
HCID 702EthanolSolvent

Procedure

A mixture of (R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-4-methylpentanamide (70 mg, 0.261 mmol), 3-aminoquinoline (60 mg, 0.416 mmol), K2CO3 (60 mg, 0.434 mmol), BINAP (25 mg, 0.040 mmol) and Pd(OAc)2 (10 mg, 0.044 mmol) in dioxane (2 mL) was degassed with Ar, then was stirred at 100 C for 20 h. Water and EtOAc were added. Organic phase was separated, dried over Na2SO4, concentrated in vacuo to give (R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide as a crude residue (131 mg). The crude (R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide (131 mg) was dissolved in EtOH (2 mL) and DMSO (1 mL), aq. 1N NaOH (1.0 mL) and aq. H2O2 (50%, 1.0 mL) were added. The mixture was stirred at room temperature for 30 min. HOAc (0.5 mL) was added. The mixture was then concentrated in vacuo. The residue was purified by HPLC to give the titled compound (30 mg). MS 394.4 (M+H); UV 201.1, 247.4, 297.8, 352.3 nm; t 0.476 min.

Workup

  1. concentrationThe mixture was then concentrated in vacuo
  2. customThe residue was purified by HPLC

Sources & evidence

ORD record
ord-d5ed7ce04f444b6cb76b1b007b13c19a
Source dataset
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08877760B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes